Home / 861,123.60-1,291,685.40-822,416.40

Finding the Fourth Proportional to 861,123.60, 1,291,685.40 and 822,416.40

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Solution

The fourth proportional to 861,123.60, 1,291,685.40 and 822,416.40 is: 1,233,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,123.60 : 1,291,685.40 = 822,416.40 : x
  2. Step 2: Convert to fraction form
    861,123.60/1,291,685.40 = 822,416.40/x
  3. Step 3: Cross multiply
    861,123.60x = 1,291,685.40 × 822,416.40
  4. Step 4: Simplify right side
    861,123.60x = 1,062,303,256,600.56
  5. Step 5: Solve for x
    x = 1,062,303,256,600.56/861,123.60
  6. Step 6: Final answer
    x = 1,233,624.60

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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.