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Finding the Fourth Proportional to 984,649.80, 1,359,270 and 576,694.92

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Solution

The fourth proportional to 984,649.80, 1,359,270 and 576,694.92 is: 796,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,649.80 : 1,359,270 = 576,694.92 : x
  2. Step 2: Convert to fraction form
    984,649.80/1,359,270 = 576,694.92/x
  3. Step 3: Cross multiply
    984,649.80x = 1,359,270 × 576,694.92
  4. Step 4: Simplify right side
    984,649.80x = 783,884,103,908.40
  5. Step 5: Solve for x
    x = 783,884,103,908.40/984,649.80
  6. Step 6: Final answer
    x = 796,104.47

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Double scale
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Similar ratio
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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.