Home / 853,669.90-1,280,504.85-814,303.90

Finding the Fourth Proportional to 853,669.90, 1,280,504.85 and 814,303.90

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Solution

The fourth proportional to 853,669.90, 1,280,504.85 and 814,303.90 is: 1,221,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,669.90 : 1,280,504.85 = 814,303.90 : x
  2. Step 2: Convert to fraction form
    853,669.90/1,280,504.85 = 814,303.90/x
  3. Step 3: Cross multiply
    853,669.90x = 1,280,504.85 × 814,303.90
  4. Step 4: Simplify right side
    853,669.90x = 1,042,720,093,323.92
  5. Step 5: Solve for x
    x = 1,042,720,093,323.92/853,669.90
  6. Step 6: Final answer
    x = 1,221,455.85

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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.