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Finding the Fourth Proportional to 487,355.70, 731,033.55 and 468,693.30

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Solution

The fourth proportional to 487,355.70, 731,033.55 and 468,693.30 is: 703,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,355.70 : 731,033.55 = 468,693.30 : x
  2. Step 2: Convert to fraction form
    487,355.70/731,033.55 = 468,693.30/x
  3. Step 3: Cross multiply
    487,355.70x = 731,033.55 × 468,693.30
  4. Step 4: Simplify right side
    487,355.70x = 342,630,526,960.22
  5. Step 5: Solve for x
    x = 342,630,526,960.22/487,355.70
  6. Step 6: Final answer
    x = 703,039.95

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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.