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Finding the Fourth Proportional to 424,347.57, 585,555.35 and 243,067.14

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Solution

The fourth proportional to 424,347.57, 585,555.35 and 243,067.14 is: 335,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,347.57 : 585,555.35 = 243,067.14 : x
  2. Step 2: Convert to fraction form
    424,347.57/585,555.35 = 243,067.14/x
  3. Step 3: Cross multiply
    424,347.57x = 585,555.35 × 243,067.14
  4. Step 4: Simplify right side
    424,347.57x = 142,329,264,843.87
  5. Step 5: Solve for x
    x = 142,329,264,843.87/424,347.57
  6. Step 6: Final answer
    x = 335,407.28

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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.