Home / 784,190.80-1,176,286.20-754,666.30

Finding the Fourth Proportional to 784,190.80, 1,176,286.20 and 754,666.30

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Solution

The fourth proportional to 784,190.80, 1,176,286.20 and 754,666.30 is: 1,131,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,190.80 : 1,176,286.20 = 754,666.30 : x
  2. Step 2: Convert to fraction form
    784,190.80/1,176,286.20 = 754,666.30/x
  3. Step 3: Cross multiply
    784,190.80x = 1,176,286.20 × 754,666.30
  4. Step 4: Simplify right side
    784,190.80x = 887,703,554,295.06
  5. Step 5: Solve for x
    x = 887,703,554,295.06/784,190.80
  6. Step 6: Final answer
    x = 1,131,999.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.