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Finding the Fourth Proportional to 424,551.98, 585,965.38 and 243,385.45

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Solution

The fourth proportional to 424,551.98, 585,965.38 and 243,385.45 is: 335,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,551.98 : 585,965.38 = 243,385.45 : x
  2. Step 2: Convert to fraction form
    424,551.98/585,965.38 = 243,385.45/x
  3. Step 3: Cross multiply
    424,551.98x = 585,965.38 × 243,385.45
  4. Step 4: Simplify right side
    424,551.98x = 142,615,448,304.19
  5. Step 5: Solve for x
    x = 142,615,448,304.19/424,551.98
  6. Step 6: Final answer
    x = 335,919.88

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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.