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Finding the Fourth Proportional to 622,041.30, 858,203.01 and 377,105.04

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Solution

The fourth proportional to 622,041.30, 858,203.01 and 377,105.04 is: 520,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,041.30 : 858,203.01 = 377,105.04 : x
  2. Step 2: Convert to fraction form
    622,041.30/858,203.01 = 377,105.04/x
  3. Step 3: Cross multiply
    622,041.30x = 858,203.01 × 377,105.04
  4. Step 4: Simplify right side
    622,041.30x = 323,632,680,414.17
  5. Step 5: Solve for x
    x = 323,632,680,414.17/622,041.30
  6. Step 6: Final answer
    x = 520,275.23

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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.