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Finding the Fourth Proportional to 515,179.36, 710,126.36 and 406,105.96

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Solution

The fourth proportional to 515,179.36, 710,126.36 and 406,105.96 is: 559,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,179.36 : 710,126.36 = 406,105.96 : x
  2. Step 2: Convert to fraction form
    515,179.36/710,126.36 = 406,105.96/x
  3. Step 3: Cross multiply
    515,179.36x = 710,126.36 × 406,105.96
  4. Step 4: Simplify right side
    515,179.36x = 288,386,547,149.11
  5. Step 5: Solve for x
    x = 288,386,547,149.11/515,179.36
  6. Step 6: Final answer
    x = 559,778.92

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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.