Home / 990,098.65-1,366,101.86-560,378.79

Finding the Fourth Proportional to 990,098.65, 1,366,101.86 and 560,378.79

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Solution

The fourth proportional to 990,098.65, 1,366,101.86 and 560,378.79 is: 773,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,098.65 : 1,366,101.86 = 560,378.79 : x
  2. Step 2: Convert to fraction form
    990,098.65/1,366,101.86 = 560,378.79/x
  3. Step 3: Cross multiply
    990,098.65x = 1,366,101.86 × 560,378.79
  4. Step 4: Simplify right side
    990,098.65x = 765,534,504,521.66
  5. Step 5: Solve for x
    x = 765,534,504,521.66/990,098.65
  6. Step 6: Final answer
    x = 773,190.13

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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.