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Finding the Fourth Proportional to 440,839.70, 608,365.45 and 247,290.32

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Solution

The fourth proportional to 440,839.70, 608,365.45 and 247,290.32 is: 341,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,839.70 : 608,365.45 = 247,290.32 : x
  2. Step 2: Convert to fraction form
    440,839.70/608,365.45 = 247,290.32/x
  3. Step 3: Cross multiply
    440,839.70x = 608,365.45 × 247,290.32
  4. Step 4: Simplify right side
    440,839.70x = 150,442,884,383.84
  5. Step 5: Solve for x
    x = 150,442,884,383.84/440,839.70
  6. Step 6: Final answer
    x = 341,264.37

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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.