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Finding the Fourth Proportional to 672,418.68, 927,938.13 and 382,030.76

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Solution

The fourth proportional to 672,418.68, 927,938.13 and 382,030.76 is: 527,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,418.68 : 927,938.13 = 382,030.76 : x
  2. Step 2: Convert to fraction form
    672,418.68/927,938.13 = 382,030.76/x
  3. Step 3: Cross multiply
    672,418.68x = 927,938.13 × 382,030.76
  4. Step 4: Simplify right side
    672,418.68x = 354,500,904,397.19
  5. Step 5: Solve for x
    x = 354,500,904,397.19/672,418.68
  6. Step 6: Final answer
    x = 527,202.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.