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Finding the Fourth Proportional to 531,224.80, 797,071.86 and 278,444.79

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Solution

The fourth proportional to 531,224.80, 797,071.86 and 278,444.79 is: 417,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,224.80 : 797,071.86 = 278,444.79 : x
  2. Step 2: Convert to fraction form
    531,224.80/797,071.86 = 278,444.79/x
  3. Step 3: Cross multiply
    531,224.80x = 797,071.86 × 278,444.79
  4. Step 4: Simplify right side
    531,224.80x = 221,940,506,672.61
  5. Step 5: Solve for x
    x = 221,940,506,672.61/531,224.80
  6. Step 6: Final answer
    x = 417,790.19

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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.