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Finding the Fourth Proportional to 440,365.38, 607,700.80 and 239,161.38

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Solution

The fourth proportional to 440,365.38, 607,700.80 and 239,161.38 is: 330,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,365.38 : 607,700.80 = 239,161.38 : x
  2. Step 2: Convert to fraction form
    440,365.38/607,700.80 = 239,161.38/x
  3. Step 3: Cross multiply
    440,365.38x = 607,700.80 × 239,161.38
  4. Step 4: Simplify right side
    440,365.38x = 145,338,561,955.10
  5. Step 5: Solve for x
    x = 145,338,561,955.10/440,365.38
  6. Step 6: Final answer
    x = 330,040.84

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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.