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Finding the Fourth Proportional to 338,718.64, 467,438.16 and 185,747.72

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Solution

The fourth proportional to 338,718.64, 467,438.16 and 185,747.72 is: 256,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,718.64 : 467,438.16 = 185,747.72 : x
  2. Step 2: Convert to fraction form
    338,718.64/467,438.16 = 185,747.72/x
  3. Step 3: Cross multiply
    338,718.64x = 467,438.16 × 185,747.72
  4. Step 4: Simplify right side
    338,718.64x = 86,825,572,461.00
  5. Step 5: Solve for x
    x = 86,825,572,461.00/338,718.64
  6. Step 6: Final answer
    x = 256,335.38

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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.