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Finding the Fourth Proportional to 418,555.86, 577,626.83 and 237,271.31

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Solution

The fourth proportional to 418,555.86, 577,626.83 and 237,271.31 is: 327,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,555.86 : 577,626.83 = 237,271.31 : x
  2. Step 2: Convert to fraction form
    418,555.86/577,626.83 = 237,271.31/x
  3. Step 3: Cross multiply
    418,555.86x = 577,626.83 × 237,271.31
  4. Step 4: Simplify right side
    418,555.86x = 137,054,272,350.29
  5. Step 5: Solve for x
    x = 137,054,272,350.29/418,555.86
  6. Step 6: Final answer
    x = 327,445.59

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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.