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Finding the Fourth Proportional to 424,186.64, 636,181.56 and 187,400.24

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Solution

The fourth proportional to 424,186.64, 636,181.56 and 187,400.24 is: 281,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,186.64 : 636,181.56 = 187,400.24 : x
  2. Step 2: Convert to fraction form
    424,186.64/636,181.56 = 187,400.24/x
  3. Step 3: Cross multiply
    424,186.64x = 636,181.56 × 187,400.24
  4. Step 4: Simplify right side
    424,186.64x = 119,220,577,027.57
  5. Step 5: Solve for x
    x = 119,220,577,027.57/424,186.64
  6. Step 6: Final answer
    x = 281,056.89

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1.5x scale

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.