Home / 440,003.72-607,205.38-238,799.72

Finding the Fourth Proportional to 440,003.72, 607,205.38 and 238,799.72

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Solution

The fourth proportional to 440,003.72, 607,205.38 and 238,799.72 is: 329,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,003.72 : 607,205.38 = 238,799.72 : x
  2. Step 2: Convert to fraction form
    440,003.72/607,205.38 = 238,799.72/x
  3. Step 3: Cross multiply
    440,003.72x = 607,205.38 × 238,799.72
  4. Step 4: Simplify right side
    440,003.72x = 145,000,470,496.47
  5. Step 5: Solve for x
    x = 145,000,470,496.47/440,003.72
  6. Step 6: Final answer
    x = 329,543.74

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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.