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Finding the Fourth Proportional to 561,920.54, 842,996.02 and 187,946.78

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Solution

The fourth proportional to 561,920.54, 842,996.02 and 187,946.78 is: 281,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,920.54 : 842,996.02 = 187,946.78 : x
  2. Step 2: Convert to fraction form
    561,920.54/842,996.02 = 187,946.78/x
  3. Step 3: Cross multiply
    561,920.54x = 842,996.02 × 187,946.78
  4. Step 4: Simplify right side
    561,920.54x = 158,438,387,511.82
  5. Step 5: Solve for x
    x = 158,438,387,511.82/561,920.54
  6. Step 6: Final answer
    x = 281,958.70

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1.5x scale

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.