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Finding the Fourth Proportional to 754,856.64, 1,041,704.64 and 415,345.92

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Solution

The fourth proportional to 754,856.64, 1,041,704.64 and 415,345.92 is: 573,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,856.64 : 1,041,704.64 = 415,345.92 : x
  2. Step 2: Convert to fraction form
    754,856.64/1,041,704.64 = 415,345.92/x
  3. Step 3: Cross multiply
    754,856.64x = 1,041,704.64 × 415,345.92
  4. Step 4: Simplify right side
    754,856.64x = 432,667,772,069.07
  5. Step 5: Solve for x
    x = 432,667,772,069.07/754,856.64
  6. Step 6: Final answer
    x = 573,178.73

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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.