Home / 781,655.79-1,171,273.09-542,235.33

Finding the Fourth Proportional to 781,655.79, 1,171,273.09 and 542,235.33

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Solution

The fourth proportional to 781,655.79, 1,171,273.09 and 542,235.33 is: 812,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,655.79 : 1,171,273.09 = 542,235.33 : x
  2. Step 2: Convert to fraction form
    781,655.79/1,171,273.09 = 542,235.33/x
  3. Step 3: Cross multiply
    781,655.79x = 1,171,273.09 × 542,235.33
  4. Step 4: Simplify right side
    781,655.79x = 635,105,650,476.27
  5. Step 5: Solve for x
    x = 635,105,650,476.27/781,655.79
  6. Step 6: Final answer
    x = 812,513.20

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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.