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Finding the Fourth Proportional to 402,166.75, 554,997.04 and 220,886.32

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Solution

The fourth proportional to 402,166.75, 554,997.04 and 220,886.32 is: 304,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,166.75 : 554,997.04 = 220,886.32 : x
  2. Step 2: Convert to fraction form
    402,166.75/554,997.04 = 220,886.32/x
  3. Step 3: Cross multiply
    402,166.75x = 554,997.04 × 220,886.32
  4. Step 4: Simplify right side
    402,166.75x = 122,591,251,937.72
  5. Step 5: Solve for x
    x = 122,591,251,937.72/402,166.75
  6. Step 6: Final answer
    x = 304,826.92

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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.