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Finding the Fourth Proportional to 970,601.70, 1,455,902.55 and 876,123.30

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Solution

The fourth proportional to 970,601.70, 1,455,902.55 and 876,123.30 is: 1,314,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,601.70 : 1,455,902.55 = 876,123.30 : x
  2. Step 2: Convert to fraction form
    970,601.70/1,455,902.55 = 876,123.30/x
  3. Step 3: Cross multiply
    970,601.70x = 1,455,902.55 × 876,123.30
  4. Step 4: Simplify right side
    970,601.70x = 1,275,550,146,584.42
  5. Step 5: Solve for x
    x = 1,275,550,146,584.42/970,601.70
  6. Step 6: Final answer
    x = 1,314,184.95

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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.