Home / 781,654.79-1,171,271.59-542,234.33

Finding the Fourth Proportional to 781,654.79, 1,171,271.59 and 542,234.33

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Solution

The fourth proportional to 781,654.79, 1,171,271.59 and 542,234.33 is: 812,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,654.79 : 1,171,271.59 = 542,234.33 : x
  2. Step 2: Convert to fraction form
    781,654.79/1,171,271.59 = 542,234.33/x
  3. Step 3: Cross multiply
    781,654.79x = 1,171,271.59 × 542,234.33
  4. Step 4: Simplify right side
    781,654.79x = 635,103,672,670.48
  5. Step 5: Solve for x
    x = 635,103,672,670.48/781,654.79
  6. Step 6: Final answer
    x = 812,511.71

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Double scale
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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.