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Finding the Fourth Proportional to 469,889.16, 648,440.08 and 265,978.74

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Solution

The fourth proportional to 469,889.16, 648,440.08 and 265,978.74 is: 367,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,889.16 : 648,440.08 = 265,978.74 : x
  2. Step 2: Convert to fraction form
    469,889.16/648,440.08 = 265,978.74/x
  3. Step 3: Cross multiply
    469,889.16x = 648,440.08 × 265,978.74
  4. Step 4: Simplify right side
    469,889.16x = 172,471,275,443.90
  5. Step 5: Solve for x
    x = 172,471,275,443.90/469,889.16
  6. Step 6: Final answer
    x = 367,046.72

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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.