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Finding the Fourth Proportional to 431,987.40, 596,131.11 and 240,995.88

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Solution

The fourth proportional to 431,987.40, 596,131.11 and 240,995.88 is: 332,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,987.40 : 596,131.11 = 240,995.88 : x
  2. Step 2: Convert to fraction form
    431,987.40/596,131.11 = 240,995.88/x
  3. Step 3: Cross multiply
    431,987.40x = 596,131.11 × 240,995.88
  4. Step 4: Simplify right side
    431,987.40x = 143,665,141,449.83
  5. Step 5: Solve for x
    x = 143,665,141,449.83/431,987.40
  6. Step 6: Final answer
    x = 332,567.90

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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.