Home / 677,763.60-1,017,811.80-656,768.40

Finding the Fourth Proportional to 677,763.60, 1,017,811.80 and 656,768.40

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Solution

The fourth proportional to 677,763.60, 1,017,811.80 and 656,768.40 is: 986,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,763.60 : 1,017,811.80 = 656,768.40 : x
  2. Step 2: Convert to fraction form
    677,763.60/1,017,811.80 = 656,768.40/x
  3. Step 3: Cross multiply
    677,763.60x = 1,017,811.80 × 656,768.40
  4. Step 4: Simplify right side
    677,763.60x = 668,466,627,387.12
  5. Step 5: Solve for x
    x = 668,466,627,387.12/677,763.60
  6. Step 6: Final answer
    x = 986,282.87

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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.