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Finding the Fourth Proportional to 440,003.75, 607,205.19 and 238,799.75

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Solution

The fourth proportional to 440,003.75, 607,205.19 and 238,799.75 is: 329,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,003.75 : 607,205.19 = 238,799.75 : x
  2. Step 2: Convert to fraction form
    440,003.75/607,205.19 = 238,799.75/x
  3. Step 3: Cross multiply
    440,003.75x = 607,205.19 × 238,799.75
  4. Step 4: Simplify right side
    440,003.75x = 145,000,447,570.70
  5. Step 5: Solve for x
    x = 145,000,447,570.70/440,003.75
  6. Step 6: Final answer
    x = 329,543.66

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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.