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Finding the Fourth Proportional to 440,381.30, 607,729.30 and 239,177.30

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Solution

The fourth proportional to 440,381.30, 607,729.30 and 239,177.30 is: 330,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,381.30 : 607,729.30 = 239,177.30 : x
  2. Step 2: Convert to fraction form
    440,381.30/607,729.30 = 239,177.30/x
  3. Step 3: Cross multiply
    440,381.30x = 607,729.30 × 239,177.30
  4. Step 4: Simplify right side
    440,381.30x = 145,355,049,468.30
  5. Step 5: Solve for x
    x = 145,355,049,468.30/440,381.30
  6. Step 6: Final answer
    x = 330,066.36

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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.