Home / 858,794.30-1,288,191.45-753,818.30

Finding the Fourth Proportional to 858,794.30, 1,288,191.45 and 753,818.30

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Solution

The fourth proportional to 858,794.30, 1,288,191.45 and 753,818.30 is: 1,130,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,794.30 : 1,288,191.45 = 753,818.30 : x
  2. Step 2: Convert to fraction form
    858,794.30/1,288,191.45 = 753,818.30/x
  3. Step 3: Cross multiply
    858,794.30x = 1,288,191.45 × 753,818.30
  4. Step 4: Simplify right side
    858,794.30x = 971,062,288,913.54
  5. Step 5: Solve for x
    x = 971,062,288,913.54/858,794.30
  6. Step 6: Final answer
    x = 1,130,727.45

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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.