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Finding the Fourth Proportional to 580,019.28, 870,346.04 and 225,047.31

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Solution

The fourth proportional to 580,019.28, 870,346.04 and 225,047.31 is: 337,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,019.28 : 870,346.04 = 225,047.31 : x
  2. Step 2: Convert to fraction form
    580,019.28/870,346.04 = 225,047.31/x
  3. Step 3: Cross multiply
    580,019.28x = 870,346.04 × 225,047.31
  4. Step 4: Simplify right side
    580,019.28x = 195,869,035,071.15
  5. Step 5: Solve for x
    x = 195,869,035,071.15/580,019.28
  6. Step 6: Final answer
    x = 337,694.01

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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.