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Finding the Fourth Proportional to 551,187.92, 760,722.60 and 336,453.20

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Solution

The fourth proportional to 551,187.92, 760,722.60 and 336,453.20 is: 464,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,187.92 : 760,722.60 = 336,453.20 : x
  2. Step 2: Convert to fraction form
    551,187.92/760,722.60 = 336,453.20/x
  3. Step 3: Cross multiply
    551,187.92x = 760,722.60 × 336,453.20
  4. Step 4: Simplify right side
    551,187.92x = 255,947,553,082.32
  5. Step 5: Solve for x
    x = 255,947,553,082.32/551,187.92
  6. Step 6: Final answer
    x = 464,356.25

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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.