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Finding the Fourth Proportional to 585,459.52, 807,934.96 and 317,187.52

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Solution

The fourth proportional to 585,459.52, 807,934.96 and 317,187.52 is: 437,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,459.52 : 807,934.96 = 317,187.52 : x
  2. Step 2: Convert to fraction form
    585,459.52/807,934.96 = 317,187.52/x
  3. Step 3: Cross multiply
    585,459.52x = 807,934.96 × 317,187.52
  4. Step 4: Simplify right side
    585,459.52x = 256,266,886,283.70
  5. Step 5: Solve for x
    x = 256,266,886,283.70/585,459.52
  6. Step 6: Final answer
    x = 437,719.22

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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.