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Finding the Fourth Proportional to 399,594.88, 551,440.92 and 220,746.88

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Solution

The fourth proportional to 399,594.88, 551,440.92 and 220,746.88 is: 304,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,594.88 : 551,440.92 = 220,746.88 : x
  2. Step 2: Convert to fraction form
    399,594.88/551,440.92 = 220,746.88/x
  3. Step 3: Cross multiply
    399,594.88x = 551,440.92 × 220,746.88
  4. Step 4: Simplify right side
    399,594.88x = 121,728,862,594.33
  5. Step 5: Solve for x
    x = 121,728,862,594.33/399,594.88
  6. Step 6: Final answer
    x = 304,630.69

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1.5x scale

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.