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Finding the Fourth Proportional to 424,937.82, 585,633.12 and 397,972.14

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Solution

The fourth proportional to 424,937.82, 585,633.12 and 397,972.14 is: 548,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,937.82 : 585,633.12 = 397,972.14 : x
  2. Step 2: Convert to fraction form
    424,937.82/585,633.12 = 397,972.14/x
  3. Step 3: Cross multiply
    424,937.82x = 585,633.12 × 397,972.14
  4. Step 4: Simplify right side
    424,937.82x = 233,065,666,021.28
  5. Step 5: Solve for x
    x = 233,065,666,021.28/424,937.82
  6. Step 6: Final answer
    x = 548,470.05

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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.