Home / 879,399.20-1,314,951.60-655,450.40

Finding the Fourth Proportional to 879,399.20, 1,314,951.60 and 655,450.40

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Solution

The fourth proportional to 879,399.20, 1,314,951.60 and 655,450.40 is: 980,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,399.20 : 1,314,951.60 = 655,450.40 : x
  2. Step 2: Convert to fraction form
    879,399.20/1,314,951.60 = 655,450.40/x
  3. Step 3: Cross multiply
    879,399.20x = 1,314,951.60 × 655,450.40
  4. Step 4: Simplify right side
    879,399.20x = 861,885,552,200.64
  5. Step 5: Solve for x
    x = 861,885,552,200.64/879,399.20
  6. Step 6: Final answer
    x = 980,084.53

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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.