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Finding the Fourth Proportional to 555,767.16, 766,948.65 and 314,044.50

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Solution

The fourth proportional to 555,767.16, 766,948.65 and 314,044.50 is: 433,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,767.16 : 766,948.65 = 314,044.50 : x
  2. Step 2: Convert to fraction form
    555,767.16/766,948.65 = 314,044.50/x
  3. Step 3: Cross multiply
    555,767.16x = 766,948.65 × 314,044.50
  4. Step 4: Simplify right side
    555,767.16x = 240,856,005,314.93
  5. Step 5: Solve for x
    x = 240,856,005,314.93/555,767.16
  6. Step 6: Final answer
    x = 433,375.74

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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.