Home / 579,211.90-869,077.05-263,506.30

Finding the Fourth Proportional to 579,211.90, 869,077.05 and 263,506.30

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Solution

The fourth proportional to 579,211.90, 869,077.05 and 263,506.30 is: 395,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,211.90 : 869,077.05 = 263,506.30 : x
  2. Step 2: Convert to fraction form
    579,211.90/869,077.05 = 263,506.30/x
  3. Step 3: Cross multiply
    579,211.90x = 869,077.05 × 263,506.30
  4. Step 4: Simplify right side
    579,211.90x = 229,007,277,860.42
  5. Step 5: Solve for x
    x = 229,007,277,860.42/579,211.90
  6. Step 6: Final answer
    x = 395,377.37

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Double scale
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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.