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Finding the Fourth Proportional to 353,456.94, 487,772.76 and 192,313.20

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Solution

The fourth proportional to 353,456.94, 487,772.76 and 192,313.20 is: 265,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,456.94 : 487,772.76 = 192,313.20 : x
  2. Step 2: Convert to fraction form
    353,456.94/487,772.76 = 192,313.20/x
  3. Step 3: Cross multiply
    353,456.94x = 487,772.76 × 192,313.20
  4. Step 4: Simplify right side
    353,456.94x = 93,805,140,348.43
  5. Step 5: Solve for x
    x = 93,805,140,348.43/353,456.94
  6. Step 6: Final answer
    x = 265,393.40

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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.