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Finding the Fourth Proportional to 615,802.60, 923,703.90 and 531,821.80

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Solution

The fourth proportional to 615,802.60, 923,703.90 and 531,821.80 is: 797,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,802.60 : 923,703.90 = 531,821.80 : x
  2. Step 2: Convert to fraction form
    615,802.60/923,703.90 = 531,821.80/x
  3. Step 3: Cross multiply
    615,802.60x = 923,703.90 × 531,821.80
  4. Step 4: Simplify right side
    615,802.60x = 491,245,870,765.02
  5. Step 5: Solve for x
    x = 491,245,870,765.02/615,802.60
  6. Step 6: Final answer
    x = 797,732.70

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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.