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Finding the Fourth Proportional to 400,291.29, 552,311.55 and 239,114.79

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Solution

The fourth proportional to 400,291.29, 552,311.55 and 239,114.79 is: 329,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,291.29 : 552,311.55 = 239,114.79 : x
  2. Step 2: Convert to fraction form
    400,291.29/552,311.55 = 239,114.79/x
  3. Step 3: Cross multiply
    400,291.29x = 552,311.55 × 239,114.79
  4. Step 4: Simplify right side
    400,291.29x = 132,065,860,292.83
  5. Step 5: Solve for x
    x = 132,065,860,292.83/400,291.29
  6. Step 6: Final answer
    x = 329,924.39

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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.