Home / 914,190.80-1,261,569.48-511,797.20

Finding the Fourth Proportional to 914,190.80, 1,261,569.48 and 511,797.20

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Solution

The fourth proportional to 914,190.80, 1,261,569.48 and 511,797.20 is: 706,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,190.80 : 1,261,569.48 = 511,797.20 : x
  2. Step 2: Convert to fraction form
    914,190.80/1,261,569.48 = 511,797.20/x
  3. Step 3: Cross multiply
    914,190.80x = 1,261,569.48 × 511,797.20
  4. Step 4: Simplify right side
    914,190.80x = 645,667,727,469.46
  5. Step 5: Solve for x
    x = 645,667,727,469.46/914,190.80
  6. Step 6: Final answer
    x = 706,272.40

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Half scale
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Double scale
Find fourth proportional to 914,191.80, 1,261,570.86 and 511,798.20
Similar ratio
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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.