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Finding the Fourth Proportional to 398,134.62, 595,798.80 and 248,445.42

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Solution

The fourth proportional to 398,134.62, 595,798.80 and 248,445.42 is: 371,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,134.62 : 595,798.80 = 248,445.42 : x
  2. Step 2: Convert to fraction form
    398,134.62/595,798.80 = 248,445.42/x
  3. Step 3: Cross multiply
    398,134.62x = 595,798.80 × 248,445.42
  4. Step 4: Simplify right side
    398,134.62x = 148,023,483,101.50
  5. Step 5: Solve for x
    x = 148,023,483,101.50/398,134.62
  6. Step 6: Final answer
    x = 371,792.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.