Home / 853,604.20-1,280,406.30-785,175.40

Finding the Fourth Proportional to 853,604.20, 1,280,406.30 and 785,175.40

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Solution

The fourth proportional to 853,604.20, 1,280,406.30 and 785,175.40 is: 1,177,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,604.20 : 1,280,406.30 = 785,175.40 : x
  2. Step 2: Convert to fraction form
    853,604.20/1,280,406.30 = 785,175.40/x
  3. Step 3: Cross multiply
    853,604.20x = 1,280,406.30 × 785,175.40
  4. Step 4: Simplify right side
    853,604.20x = 1,005,343,528,765.02
  5. Step 5: Solve for x
    x = 1,005,343,528,765.02/853,604.20
  6. Step 6: Final answer
    x = 1,177,763.10

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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.