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Finding the Fourth Proportional to 390,942.48, 586,588.68 and 224,730.48

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Solution

The fourth proportional to 390,942.48, 586,588.68 and 224,730.48 is: 337,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,942.48 : 586,588.68 = 224,730.48 : x
  2. Step 2: Convert to fraction form
    390,942.48/586,588.68 = 224,730.48/x
  3. Step 3: Cross multiply
    390,942.48x = 586,588.68 × 224,730.48
  4. Step 4: Simplify right side
    390,942.48x = 131,824,355,618.97
  5. Step 5: Solve for x
    x = 131,824,355,618.97/390,942.48
  6. Step 6: Final answer
    x = 337,196.29

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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.