Home / 861,542.02-1,188,908.28-539,429.72

Finding the Fourth Proportional to 861,542.02, 1,188,908.28 and 539,429.72

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Solution

The fourth proportional to 861,542.02, 1,188,908.28 and 539,429.72 is: 744,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,542.02 : 1,188,908.28 = 539,429.72 : x
  2. Step 2: Convert to fraction form
    861,542.02/1,188,908.28 = 539,429.72/x
  3. Step 3: Cross multiply
    861,542.02x = 1,188,908.28 × 539,429.72
  4. Step 4: Simplify right side
    861,542.02x = 641,332,460,586.08
  5. Step 5: Solve for x
    x = 641,332,460,586.08/861,542.02
  6. Step 6: Final answer
    x = 744,400.67

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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.