Home / 861,203.61-1,188,383.74-498,651.94

Finding the Fourth Proportional to 861,203.61, 1,188,383.74 and 498,651.94

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Solution

The fourth proportional to 861,203.61, 1,188,383.74 and 498,651.94 is: 688,094.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,203.61 : 1,188,383.74 = 498,651.94 : x
  2. Step 2: Convert to fraction form
    861,203.61/1,188,383.74 = 498,651.94/x
  3. Step 3: Cross multiply
    861,203.61x = 1,188,383.74 × 498,651.94
  4. Step 4: Simplify right side
    861,203.61x = 592,589,860,170.87
  5. Step 5: Solve for x
    x = 592,589,860,170.87/861,203.61
  6. Step 6: Final answer
    x = 688,094.95

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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.