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Finding the Fourth Proportional to 440,003.78, 607,205.46 and 238,799.78

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Solution

The fourth proportional to 440,003.78, 607,205.46 and 238,799.78 is: 329,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,003.78 : 607,205.46 = 238,799.78 : x
  2. Step 2: Convert to fraction form
    440,003.78/607,205.46 = 238,799.78/x
  3. Step 3: Cross multiply
    440,003.78x = 607,205.46 × 238,799.78
  4. Step 4: Simplify right side
    440,003.78x = 145,000,529,043.29
  5. Step 5: Solve for x
    x = 145,000,529,043.29/440,003.78
  6. Step 6: Final answer
    x = 329,543.83

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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.