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Finding the Fourth Proportional to 424,207.87, 585,533.06 and 243,040.43

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Solution

The fourth proportional to 424,207.87, 585,533.06 and 243,040.43 is: 335,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,207.87 : 585,533.06 = 243,040.43 : x
  2. Step 2: Convert to fraction form
    424,207.87/585,533.06 = 243,040.43/x
  3. Step 3: Cross multiply
    424,207.87x = 585,533.06 × 243,040.43
  4. Step 4: Simplify right side
    424,207.87x = 142,308,207,841.65
  5. Step 5: Solve for x
    x = 142,308,207,841.65/424,207.87
  6. Step 6: Final answer
    x = 335,468.10

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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.