Home / 891,683.20-1,337,697.60-386,243.20

Finding the Fourth Proportional to 891,683.20, 1,337,697.60 and 386,243.20

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Solution

The fourth proportional to 891,683.20, 1,337,697.60 and 386,243.20 is: 579,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,683.20 : 1,337,697.60 = 386,243.20 : x
  2. Step 2: Convert to fraction form
    891,683.20/1,337,697.60 = 386,243.20/x
  3. Step 3: Cross multiply
    891,683.20x = 1,337,697.60 × 386,243.20
  4. Step 4: Simplify right side
    891,683.20x = 516,676,601,656.32
  5. Step 5: Solve for x
    x = 516,676,601,656.32/891,683.20
  6. Step 6: Final answer
    x = 579,439.65

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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.