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Finding the Fourth Proportional to 706,691.15, 1,059,608.63 and 317,126.12

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Solution

The fourth proportional to 706,691.15, 1,059,608.63 and 317,126.12 is: 475,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,691.15 : 1,059,608.63 = 317,126.12 : x
  2. Step 2: Convert to fraction form
    706,691.15/1,059,608.63 = 317,126.12/x
  3. Step 3: Cross multiply
    706,691.15x = 1,059,608.63 × 317,126.12
  4. Step 4: Simplify right side
    706,691.15x = 336,029,566,666.74
  5. Step 5: Solve for x
    x = 336,029,566,666.74/706,691.15
  6. Step 6: Final answer
    x = 475,497.07

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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.