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Finding the Fourth Proportional to 469,901.10, 648,464.15 and 255,041.17

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Solution

The fourth proportional to 469,901.10, 648,464.15 and 255,041.17 is: 351,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,901.10 : 648,464.15 = 255,041.17 : x
  2. Step 2: Convert to fraction form
    469,901.10/648,464.15 = 255,041.17/x
  3. Step 3: Cross multiply
    469,901.10x = 648,464.15 × 255,041.17
  4. Step 4: Simplify right side
    469,901.10x = 165,385,056,748.50
  5. Step 5: Solve for x
    x = 165,385,056,748.50/469,901.10
  6. Step 6: Final answer
    x = 351,957.16

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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.