Home / 861,544.02-1,188,911.04-539,431.72

Finding the Fourth Proportional to 861,544.02, 1,188,911.04 and 539,431.72

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Solution

The fourth proportional to 861,544.02, 1,188,911.04 and 539,431.72 is: 744,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,544.02 : 1,188,911.04 = 539,431.72 : x
  2. Step 2: Convert to fraction form
    861,544.02/1,188,911.04 = 539,431.72/x
  3. Step 3: Cross multiply
    861,544.02x = 1,188,911.04 × 539,431.72
  4. Step 4: Simplify right side
    861,544.02x = 641,336,327,234.19
  5. Step 5: Solve for x
    x = 641,336,327,234.19/861,544.02
  6. Step 6: Final answer
    x = 744,403.43

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Double scale
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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.