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Finding the Fourth Proportional to 888,909.80, 1,333,364.70 and 652,713.80

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Solution

The fourth proportional to 888,909.80, 1,333,364.70 and 652,713.80 is: 979,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,909.80 : 1,333,364.70 = 652,713.80 : x
  2. Step 2: Convert to fraction form
    888,909.80/1,333,364.70 = 652,713.80/x
  3. Step 3: Cross multiply
    888,909.80x = 1,333,364.70 × 652,713.80
  4. Step 4: Simplify right side
    888,909.80x = 870,305,540,122.86
  5. Step 5: Solve for x
    x = 870,305,540,122.86/888,909.80
  6. Step 6: Final answer
    x = 979,070.70

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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.