Home / 881,163.50-1,216,065.76-499,193.42

Finding the Fourth Proportional to 881,163.50, 1,216,065.76 and 499,193.42

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Solution

The fourth proportional to 881,163.50, 1,216,065.76 and 499,193.42 is: 688,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,163.50 : 1,216,065.76 = 499,193.42 : x
  2. Step 2: Convert to fraction form
    881,163.50/1,216,065.76 = 499,193.42/x
  3. Step 3: Cross multiply
    881,163.50x = 1,216,065.76 × 499,193.42
  4. Step 4: Simplify right side
    881,163.50x = 607,052,018,350.99
  5. Step 5: Solve for x
    x = 607,052,018,350.99/881,163.50
  6. Step 6: Final answer
    x = 688,920.98

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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.