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Finding the Fourth Proportional to 517,779.73, 714,887.13 and 324,265.06

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Solution

The fourth proportional to 517,779.73, 714,887.13 and 324,265.06 is: 447,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,779.73 : 714,887.13 = 324,265.06 : x
  2. Step 2: Convert to fraction form
    517,779.73/714,887.13 = 324,265.06/x
  3. Step 3: Cross multiply
    517,779.73x = 714,887.13 × 324,265.06
  4. Step 4: Simplify right side
    517,779.73x = 231,812,918,102.68
  5. Step 5: Solve for x
    x = 231,812,918,102.68/517,779.73
  6. Step 6: Final answer
    x = 447,705.66

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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.