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Finding the Fourth Proportional to 606,938.20, 910,407.30 and 381,567.85

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Solution

The fourth proportional to 606,938.20, 910,407.30 and 381,567.85 is: 572,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,938.20 : 910,407.30 = 381,567.85 : x
  2. Step 2: Convert to fraction form
    606,938.20/910,407.30 = 381,567.85/x
  3. Step 3: Cross multiply
    606,938.20x = 910,407.30 × 381,567.85
  4. Step 4: Simplify right side
    606,938.20x = 347,382,156,085.31
  5. Step 5: Solve for x
    x = 347,382,156,085.31/606,938.20
  6. Step 6: Final answer
    x = 572,351.78

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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.