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Finding the Fourth Proportional to 656,443.52, 905,544.84 and 452,143.08

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Solution

The fourth proportional to 656,443.52, 905,544.84 and 452,143.08 is: 623,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,443.52 : 905,544.84 = 452,143.08 : x
  2. Step 2: Convert to fraction form
    656,443.52/905,544.84 = 452,143.08/x
  3. Step 3: Cross multiply
    656,443.52x = 905,544.84 × 452,143.08
  4. Step 4: Simplify right side
    656,443.52x = 409,435,833,035.71
  5. Step 5: Solve for x
    x = 409,435,833,035.71/656,443.52
  6. Step 6: Final answer
    x = 623,718.29

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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.