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Finding the Fourth Proportional to 353,542.12, 487,881.16 and 192,399.91

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Solution

The fourth proportional to 353,542.12, 487,881.16 and 192,399.91 is: 265,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,542.12 : 487,881.16 = 192,399.91 : x
  2. Step 2: Convert to fraction form
    353,542.12/487,881.16 = 192,399.91/x
  3. Step 3: Cross multiply
    353,542.12x = 487,881.16 × 192,399.91
  4. Step 4: Simplify right side
    353,542.12x = 93,868,289,573.99
  5. Step 5: Solve for x
    x = 93,868,289,573.99/353,542.12
  6. Step 6: Final answer
    x = 265,508.08

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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.