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Finding the Fourth Proportional to 624,296.40, 935,132.40 and 519,320.40

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Solution

The fourth proportional to 624,296.40, 935,132.40 and 519,320.40 is: 777,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,296.40 : 935,132.40 = 519,320.40 : x
  2. Step 2: Convert to fraction form
    624,296.40/935,132.40 = 519,320.40/x
  3. Step 3: Cross multiply
    624,296.40x = 935,132.40 × 519,320.40
  4. Step 4: Simplify right side
    624,296.40x = 485,633,332,020.96
  5. Step 5: Solve for x
    x = 485,633,332,020.96/624,296.40
  6. Step 6: Final answer
    x = 777,889.05

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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.