Home / 910,859.20-1,366,288.80-612,260.80

Finding the Fourth Proportional to 910,859.20, 1,366,288.80 and 612,260.80

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Solution

The fourth proportional to 910,859.20, 1,366,288.80 and 612,260.80 is: 918,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,859.20 : 1,366,288.80 = 612,260.80 : x
  2. Step 2: Convert to fraction form
    910,859.20/1,366,288.80 = 612,260.80/x
  3. Step 3: Cross multiply
    910,859.20x = 1,366,288.80 × 612,260.80
  4. Step 4: Simplify right side
    910,859.20x = 836,525,073,719.04
  5. Step 5: Solve for x
    x = 836,525,073,719.04/910,859.20
  6. Step 6: Final answer
    x = 918,391.20

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Double scale
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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.