Home / 990,185.19-1,366,355.83-560,390.49

Finding the Fourth Proportional to 990,185.19, 1,366,355.83 and 560,390.49

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Solution

The fourth proportional to 990,185.19, 1,366,355.83 and 560,390.49 is: 773,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,185.19 : 1,366,355.83 = 560,390.49 : x
  2. Step 2: Convert to fraction form
    990,185.19/1,366,355.83 = 560,390.49/x
  3. Step 3: Cross multiply
    990,185.19x = 1,366,355.83 × 560,390.49
  4. Step 4: Simplify right side
    990,185.19x = 765,692,813,088.06
  5. Step 5: Solve for x
    x = 765,692,813,088.06/990,185.19
  6. Step 6: Final answer
    x = 773,282.43

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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.