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Finding the Fourth Proportional to 463,443.60, 695,165.40 and 147,932.40

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Solution

The fourth proportional to 463,443.60, 695,165.40 and 147,932.40 is: 221,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,443.60 : 695,165.40 = 147,932.40 : x
  2. Step 2: Convert to fraction form
    463,443.60/695,165.40 = 147,932.40/x
  3. Step 3: Cross multiply
    463,443.60x = 695,165.40 × 147,932.40
  4. Step 4: Simplify right side
    463,443.60x = 102,837,486,018.96
  5. Step 5: Solve for x
    x = 102,837,486,018.96/463,443.60
  6. Step 6: Final answer
    x = 221,898.60

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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.