Home / 863,187.43-1,191,171.36-476,019.19

Finding the Fourth Proportional to 863,187.43, 1,191,171.36 and 476,019.19

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Solution

The fourth proportional to 863,187.43, 1,191,171.36 and 476,019.19 is: 656,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,187.43 : 1,191,171.36 = 476,019.19 : x
  2. Step 2: Convert to fraction form
    863,187.43/1,191,171.36 = 476,019.19/x
  3. Step 3: Cross multiply
    863,187.43x = 1,191,171.36 × 476,019.19
  4. Step 4: Simplify right side
    863,187.43x = 567,020,425,938.40
  5. Step 5: Solve for x
    x = 567,020,425,938.40/863,187.43
  6. Step 6: Final answer
    x = 656,891.43

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Half scale
Find fourth proportional to 1,726,374.86, 2,382,342.72 and 952,038.38
Double scale
Find fourth proportional to 863,188.43, 1,191,172.74 and 476,020.19
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.