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Finding the Fourth Proportional to 572,129.04, 858,472.30 and 235,270.90

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Solution

The fourth proportional to 572,129.04, 858,472.30 and 235,270.90 is: 353,020.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,129.04 : 858,472.30 = 235,270.90 : x
  2. Step 2: Convert to fraction form
    572,129.04/858,472.30 = 235,270.90/x
  3. Step 3: Cross multiply
    572,129.04x = 858,472.30 × 235,270.90
  4. Step 4: Simplify right side
    572,129.04x = 201,973,546,353.71
  5. Step 5: Solve for x
    x = 201,973,546,353.71/572,129.04
  6. Step 6: Final answer
    x = 353,020.97

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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.