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Finding the Fourth Proportional to 415,187.68, 573,001.33 and 254,149.15

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Solution

The fourth proportional to 415,187.68, 573,001.33 and 254,149.15 is: 350,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,187.68 : 573,001.33 = 254,149.15 : x
  2. Step 2: Convert to fraction form
    415,187.68/573,001.33 = 254,149.15/x
  3. Step 3: Cross multiply
    415,187.68x = 573,001.33 × 254,149.15
  4. Step 4: Simplify right side
    415,187.68x = 145,627,798,900.49
  5. Step 5: Solve for x
    x = 145,627,798,900.49/415,187.68
  6. Step 6: Final answer
    x = 350,751.74

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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.