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Finding the Fourth Proportional to 418,152.46, 577,099.84 and 248,387.26

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Solution

The fourth proportional to 418,152.46, 577,099.84 and 248,387.26 is: 342,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,152.46 : 577,099.84 = 248,387.26 : x
  2. Step 2: Convert to fraction form
    418,152.46/577,099.84 = 248,387.26/x
  3. Step 3: Cross multiply
    418,152.46x = 577,099.84 × 248,387.26
  4. Step 4: Simplify right side
    418,152.46x = 143,344,248,004.04
  5. Step 5: Solve for x
    x = 143,344,248,004.04/418,152.46
  6. Step 6: Final answer
    x = 342,803.79

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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.