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Finding the Fourth Proportional to 418,332.92, 577,303.88 and 227,346.30

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Solution

The fourth proportional to 418,332.92, 577,303.88 and 227,346.30 is: 313,740.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,332.92 : 577,303.88 = 227,346.30 : x
  2. Step 2: Convert to fraction form
    418,332.92/577,303.88 = 227,346.30/x
  3. Step 3: Cross multiply
    418,332.92x = 577,303.88 × 227,346.30
  4. Step 4: Simplify right side
    418,332.92x = 131,247,899,956.91
  5. Step 5: Solve for x
    x = 131,247,899,956.91/418,332.92
  6. Step 6: Final answer
    x = 313,740.31

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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.