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Finding the Fourth Proportional to 395,740.68, 592,192.07 and 342,615.39

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Solution

The fourth proportional to 395,740.68, 592,192.07 and 342,615.39 is: 512,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,740.68 : 592,192.07 = 342,615.39 : x
  2. Step 2: Convert to fraction form
    395,740.68/592,192.07 = 342,615.39/x
  3. Step 3: Cross multiply
    395,740.68x = 592,192.07 × 342,615.39
  4. Step 4: Simplify right side
    395,740.68x = 202,894,114,913.54
  5. Step 5: Solve for x
    x = 202,894,114,913.54/395,740.68
  6. Step 6: Final answer
    x = 512,694.62

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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.