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Finding the Fourth Proportional to 544,976.40, 817,464.60 and 478,491.60

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Solution

The fourth proportional to 544,976.40, 817,464.60 and 478,491.60 is: 717,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,976.40 : 817,464.60 = 478,491.60 : x
  2. Step 2: Convert to fraction form
    544,976.40/817,464.60 = 478,491.60/x
  3. Step 3: Cross multiply
    544,976.40x = 817,464.60 × 478,491.60
  4. Step 4: Simplify right side
    544,976.40x = 391,149,944,397.36
  5. Step 5: Solve for x
    x = 391,149,944,397.36/544,976.40
  6. Step 6: Final answer
    x = 717,737.40

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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.