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Finding the Fourth Proportional to 528,871.92, 791,536.68 and 434,099.04

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Solution

The fourth proportional to 528,871.92, 791,536.68 and 434,099.04 is: 649,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,871.92 : 791,536.68 = 434,099.04 : x
  2. Step 2: Convert to fraction form
    528,871.92/791,536.68 = 434,099.04/x
  3. Step 3: Cross multiply
    528,871.92x = 791,536.68 × 434,099.04
  4. Step 4: Simplify right side
    528,871.92x = 343,605,312,912.79
  5. Step 5: Solve for x
    x = 343,605,312,912.79/528,871.92
  6. Step 6: Final answer
    x = 649,694.76

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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.