Home / 985,163.73-1,359,498.78-555,440.10

Finding the Fourth Proportional to 985,163.73, 1,359,498.78 and 555,440.10

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Solution

The fourth proportional to 985,163.73, 1,359,498.78 and 555,440.10 is: 766,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,163.73 : 1,359,498.78 = 555,440.10 : x
  2. Step 2: Convert to fraction form
    985,163.73/1,359,498.78 = 555,440.10/x
  3. Step 3: Cross multiply
    985,163.73x = 1,359,498.78 × 555,440.10
  4. Step 4: Simplify right side
    985,163.73x = 755,120,138,313.08
  5. Step 5: Solve for x
    x = 755,120,138,313.08/985,163.73
  6. Step 6: Final answer
    x = 766,492.02

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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.