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Finding the Fourth Proportional to 573,029.64, 858,729.24 and 422,082.72

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Solution

The fourth proportional to 573,029.64, 858,729.24 and 422,082.72 is: 632,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,029.64 : 858,729.24 = 422,082.72 : x
  2. Step 2: Convert to fraction form
    573,029.64/858,729.24 = 422,082.72/x
  3. Step 3: Cross multiply
    573,029.64x = 858,729.24 × 422,082.72
  4. Step 4: Simplify right side
    573,029.64x = 362,454,773,362.73
  5. Step 5: Solve for x
    x = 362,454,773,362.73/573,029.64
  6. Step 6: Final answer
    x = 632,523.60

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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.