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Finding the Fourth Proportional to 580,061.16, 800,472.35 and 321,923.11

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Solution

The fourth proportional to 580,061.16, 800,472.35 and 321,923.11 is: 444,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,061.16 : 800,472.35 = 321,923.11 : x
  2. Step 2: Convert to fraction form
    580,061.16/800,472.35 = 321,923.11/x
  3. Step 3: Cross multiply
    580,061.16x = 800,472.35 × 321,923.11
  4. Step 4: Simplify right side
    580,061.16x = 257,690,548,381.01
  5. Step 5: Solve for x
    x = 257,690,548,381.01/580,061.16
  6. Step 6: Final answer
    x = 444,247.21

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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.