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Finding the Fourth Proportional to 709,714.59, 979,275.11 and 403,773.11

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Solution

The fourth proportional to 709,714.59, 979,275.11 and 403,773.11 is: 557,132.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,714.59 : 979,275.11 = 403,773.11 : x
  2. Step 2: Convert to fraction form
    709,714.59/979,275.11 = 403,773.11/x
  3. Step 3: Cross multiply
    709,714.59x = 979,275.11 × 403,773.11
  4. Step 4: Simplify right side
    709,714.59x = 395,404,957,139.61
  5. Step 5: Solve for x
    x = 395,404,957,139.61/709,714.59
  6. Step 6: Final answer
    x = 557,132.35

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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.