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Finding the Fourth Proportional to 265,764, 398,832.80 and 240,354.47

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Solution

The fourth proportional to 265,764, 398,832.80 and 240,354.47 is: 360,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,764 : 398,832.80 = 240,354.47 : x
  2. Step 2: Convert to fraction form
    265,764/398,832.80 = 240,354.47/x
  3. Step 3: Cross multiply
    265,764x = 398,832.80 × 240,354.47
  4. Step 4: Simplify right side
    265,764x = 95,861,243,066.68
  5. Step 5: Solve for x
    x = 95,861,243,066.68/265,764
  6. Step 6: Final answer
    x = 360,700.63

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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.