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Finding the Fourth Proportional to 659,296.66, 993,886.41 and 615,353.88

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Solution

The fourth proportional to 659,296.66, 993,886.41 and 615,353.88 is: 927,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,296.66 : 993,886.41 = 615,353.88 : x
  2. Step 2: Convert to fraction form
    659,296.66/993,886.41 = 615,353.88/x
  3. Step 3: Cross multiply
    659,296.66x = 993,886.41 × 615,353.88
  4. Step 4: Simplify right side
    659,296.66x = 611,591,858,672.77
  5. Step 5: Solve for x
    x = 611,591,858,672.77/659,296.66
  6. Step 6: Final answer
    x = 927,642.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.