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Finding the Fourth Proportional to 1,023,174, 1,412,079.89 and 764,601.95

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Solution

The fourth proportional to 1,023,174, 1,412,079.89 and 764,601.95 is: 1,055,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023,174 : 1,412,079.89 = 764,601.95 : x
  2. Step 2: Convert to fraction form
    1,023,174/1,412,079.89 = 764,601.95/x
  3. Step 3: Cross multiply
    1,023,174x = 1,412,079.89 × 764,601.95
  4. Step 4: Simplify right side
    1,023,174x = 1,079,679,037,156.98
  5. Step 5: Solve for x
    x = 1,079,679,037,156.98/1,023,174
  6. Step 6: Final answer
    x = 1,055,225.25

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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.