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Finding the Fourth Proportional to 278,671.04, 418,006.56 and 195,934.40

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Solution

The fourth proportional to 278,671.04, 418,006.56 and 195,934.40 is: 293,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,671.04 : 418,006.56 = 195,934.40 : x
  2. Step 2: Convert to fraction form
    278,671.04/418,006.56 = 195,934.40/x
  3. Step 3: Cross multiply
    278,671.04x = 418,006.56 × 195,934.40
  4. Step 4: Simplify right side
    278,671.04x = 81,901,864,529.66
  5. Step 5: Solve for x
    x = 81,901,864,529.66/278,671.04
  6. Step 6: Final answer
    x = 293,901.60

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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.