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Finding the Fourth Proportional to 353,162.71, 487,363.88 and 192,017.38

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Solution

The fourth proportional to 353,162.71, 487,363.88 and 192,017.38 is: 264,983.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,162.71 : 487,363.88 = 192,017.38 : x
  2. Step 2: Convert to fraction form
    353,162.71/487,363.88 = 192,017.38/x
  3. Step 3: Cross multiply
    353,162.71x = 487,363.88 × 192,017.38
  4. Step 4: Simplify right side
    353,162.71x = 93,582,335,344.23
  5. Step 5: Solve for x
    x = 93,582,335,344.23/353,162.71
  6. Step 6: Final answer
    x = 264,983.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.