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Finding the Fourth Proportional to 994,902, 1,372,826.28 and 559,257.76

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Solution

The fourth proportional to 994,902, 1,372,826.28 and 559,257.76 is: 771,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,902 : 1,372,826.28 = 559,257.76 : x
  2. Step 2: Convert to fraction form
    994,902/1,372,826.28 = 559,257.76/x
  3. Step 3: Cross multiply
    994,902x = 1,372,826.28 × 559,257.76
  4. Step 4: Simplify right side
    994,902x = 767,763,750,221.93
  5. Step 5: Solve for x
    x = 767,763,750,221.93/994,902
  6. Step 6: Final answer
    x = 771,697.87

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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.