Home / 867,406.92-1,197,756.35-545,220.78

Finding the Fourth Proportional to 867,406.92, 1,197,756.35 and 545,220.78

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Solution

The fourth proportional to 867,406.92, 1,197,756.35 and 545,220.78 is: 752,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,406.92 : 1,197,756.35 = 545,220.78 : x
  2. Step 2: Convert to fraction form
    867,406.92/1,197,756.35 = 545,220.78/x
  3. Step 3: Cross multiply
    867,406.92x = 1,197,756.35 × 545,220.78
  4. Step 4: Simplify right side
    867,406.92x = 653,041,651,396.95
  5. Step 5: Solve for x
    x = 653,041,651,396.95/867,406.92
  6. Step 6: Final answer
    x = 752,866.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.