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Finding the Fourth Proportional to 415,562.76, 623,344.30 and 100,019.66

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Solution

The fourth proportional to 415,562.76, 623,344.30 and 100,019.66 is: 150,029.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,562.76 : 623,344.30 = 100,019.66 : x
  2. Step 2: Convert to fraction form
    415,562.76/623,344.30 = 100,019.66/x
  3. Step 3: Cross multiply
    415,562.76x = 623,344.30 × 100,019.66
  4. Step 4: Simplify right side
    415,562.76x = 62,346,686,305.80
  5. Step 5: Solve for x
    x = 62,346,686,305.80/415,562.76
  6. Step 6: Final answer
    x = 150,029.53

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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.