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Finding the Fourth Proportional to 665,444.30, 998,166.45 and 553,251.20

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Solution

The fourth proportional to 665,444.30, 998,166.45 and 553,251.20 is: 829,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,444.30 : 998,166.45 = 553,251.20 : x
  2. Step 2: Convert to fraction form
    665,444.30/998,166.45 = 553,251.20/x
  3. Step 3: Cross multiply
    665,444.30x = 998,166.45 × 553,251.20
  4. Step 4: Simplify right side
    665,444.30x = 552,236,786,262.24
  5. Step 5: Solve for x
    x = 552,236,786,262.24/665,444.30
  6. Step 6: Final answer
    x = 829,876.80

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Similar ratio
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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.