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Finding the Fourth Proportional to 363,744.60, 545,111.16 and 316,262.40

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Solution

The fourth proportional to 363,744.60, 545,111.16 and 316,262.40 is: 473,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,744.60 : 545,111.16 = 316,262.40 : x
  2. Step 2: Convert to fraction form
    363,744.60/545,111.16 = 316,262.40/x
  3. Step 3: Cross multiply
    363,744.60x = 545,111.16 × 316,262.40
  4. Step 4: Simplify right side
    363,744.60x = 172,398,163,728.38
  5. Step 5: Solve for x
    x = 172,398,163,728.38/363,744.60
  6. Step 6: Final answer
    x = 473,953.88

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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.