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Finding the Fourth Proportional to 469,901.52, 648,464.74 and 255,041.61

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Solution

The fourth proportional to 469,901.52, 648,464.74 and 255,041.61 is: 351,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,901.52 : 648,464.74 = 255,041.61 : x
  2. Step 2: Convert to fraction form
    469,901.52/648,464.74 = 255,041.61/x
  3. Step 3: Cross multiply
    469,901.52x = 648,464.74 × 255,041.61
  4. Step 4: Simplify right side
    469,901.52x = 165,385,491,896.10
  5. Step 5: Solve for x
    x = 165,385,491,896.10/469,901.52
  6. Step 6: Final answer
    x = 351,957.77

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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.