Home / 579,443,361.70-869,165,042.55-443,394,465.70

Finding the Fourth Proportional to 579,443,361.70, 869,165,042.55 and 443,394,465.70

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Solution

The fourth proportional to 579,443,361.70, 869,165,042.55 and 443,394,465.70 is: 665,091,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,443,361.70 : 869,165,042.55 = 443,394,465.70 : x
  2. Step 2: Convert to fraction form
    579,443,361.70/869,165,042.55 = 443,394,465.70/x
  3. Step 3: Cross multiply
    579,443,361.70x = 869,165,042.55 × 443,394,465.70
  4. Step 4: Simplify right side
    579,443,361.70x = 385,382,969,646,574,976
  5. Step 5: Solve for x
    x = 385,382,969,646,574,976/579,443,361.70
  6. Step 6: Final answer
    x = 665,091,698.55

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Half scale
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Double scale
Find fourth proportional to 579,443,362.70, 869,165,044.05 and 443,394,466.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.