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Finding the Fourth Proportional to 572,894.52, 858,526.92 and 421,947.72

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Solution

The fourth proportional to 572,894.52, 858,526.92 and 421,947.72 is: 632,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,894.52 : 858,526.92 = 421,947.72 : x
  2. Step 2: Convert to fraction form
    572,894.52/858,526.92 = 421,947.72/x
  3. Step 3: Cross multiply
    572,894.52x = 858,526.92 × 421,947.72
  4. Step 4: Simplify right side
    572,894.52x = 362,253,476,452.62
  5. Step 5: Solve for x
    x = 362,253,476,452.62/572,894.52
  6. Step 6: Final answer
    x = 632,321.42

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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.