Home / 809,203.60-1,215,117.60-544,139.20

Finding the Fourth Proportional to 809,203.60, 1,215,117.60 and 544,139.20

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Solution

The fourth proportional to 809,203.60, 1,215,117.60 and 544,139.20 is: 817,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,203.60 : 1,215,117.60 = 544,139.20 : x
  2. Step 2: Convert to fraction form
    809,203.60/1,215,117.60 = 544,139.20/x
  3. Step 3: Cross multiply
    809,203.60x = 1,215,117.60 × 544,139.20
  4. Step 4: Simplify right side
    809,203.60x = 661,193,118,769.92
  5. Step 5: Solve for x
    x = 661,193,118,769.92/809,203.60
  6. Step 6: Final answer
    x = 817,091.17

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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.