Home / 622,511.10-933,766.65-386,315.10

Finding the Fourth Proportional to 622,511.10, 933,766.65 and 386,315.10

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Solution

The fourth proportional to 622,511.10, 933,766.65 and 386,315.10 is: 579,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,511.10 : 933,766.65 = 386,315.10 : x
  2. Step 2: Convert to fraction form
    622,511.10/933,766.65 = 386,315.10/x
  3. Step 3: Cross multiply
    622,511.10x = 933,766.65 × 386,315.10
  4. Step 4: Simplify right side
    622,511.10x = 360,728,156,771.42
  5. Step 5: Solve for x
    x = 360,728,156,771.42/622,511.10
  6. Step 6: Final answer
    x = 579,472.65

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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.