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Finding the Fourth Proportional to 462,445.75, 637,997.96 and 281,091.50

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Solution

The fourth proportional to 462,445.75, 637,997.96 and 281,091.50 is: 387,798.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,445.75 : 637,997.96 = 281,091.50 : x
  2. Step 2: Convert to fraction form
    462,445.75/637,997.96 = 281,091.50/x
  3. Step 3: Cross multiply
    462,445.75x = 637,997.96 × 281,091.50
  4. Step 4: Simplify right side
    462,445.75x = 179,335,806,276.74
  5. Step 5: Solve for x
    x = 179,335,806,276.74/462,445.75
  6. Step 6: Final answer
    x = 387,798.59

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1.5x scale

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.