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Finding the Fourth Proportional to 667,925.28, 922,620.24 and 497,864.16

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Solution

The fourth proportional to 667,925.28, 922,620.24 and 497,864.16 is: 687,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,925.28 : 922,620.24 = 497,864.16 : x
  2. Step 2: Convert to fraction form
    667,925.28/922,620.24 = 497,864.16/x
  3. Step 3: Cross multiply
    667,925.28x = 922,620.24 × 497,864.16
  4. Step 4: Simplify right side
    667,925.28x = 459,339,550,786.60
  5. Step 5: Solve for x
    x = 459,339,550,786.60/667,925.28
  6. Step 6: Final answer
    x = 687,710.98

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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.