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Finding the Fourth Proportional to 624,294.40, 935,129.40 and 519,318.40

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Solution

The fourth proportional to 624,294.40, 935,129.40 and 519,318.40 is: 777,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,294.40 : 935,129.40 = 519,318.40 : x
  2. Step 2: Convert to fraction form
    624,294.40/935,129.40 = 519,318.40/x
  3. Step 3: Cross multiply
    624,294.40x = 935,129.40 × 519,318.40
  4. Step 4: Simplify right side
    624,294.40x = 485,629,903,800.96
  5. Step 5: Solve for x
    x = 485,629,903,800.96/624,294.40
  6. Step 6: Final answer
    x = 777,886.05

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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.