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Finding the Fourth Proportional to 558,806.01, 771,160.35 and 313,843.76

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Solution

The fourth proportional to 558,806.01, 771,160.35 and 313,843.76 is: 433,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,806.01 : 771,160.35 = 313,843.76 : x
  2. Step 2: Convert to fraction form
    558,806.01/771,160.35 = 313,843.76/x
  3. Step 3: Cross multiply
    558,806.01x = 771,160.35 × 313,843.76
  4. Step 4: Simplify right side
    558,806.01x = 242,023,866,592.29
  5. Step 5: Solve for x
    x = 242,023,866,592.29/558,806.01
  6. Step 6: Final answer
    x = 433,108.92

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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.