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Finding the Fourth Proportional to 424,362.14, 585,626.89 and 243,089.91

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Solution

The fourth proportional to 424,362.14, 585,626.89 and 243,089.91 is: 335,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,362.14 : 585,626.89 = 243,089.91 : x
  2. Step 2: Convert to fraction form
    424,362.14/585,626.89 = 243,089.91/x
  3. Step 3: Cross multiply
    424,362.14x = 585,626.89 × 243,089.91
  4. Step 4: Simplify right side
    424,362.14x = 142,359,987,148.06
  5. Step 5: Solve for x
    x = 142,359,987,148.06/424,362.14
  6. Step 6: Final answer
    x = 335,468.16

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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.