Home / 689,673.85-1,034,511.98-216,395.53

Finding the Fourth Proportional to 689,673.85, 1,034,511.98 and 216,395.53

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Solution

The fourth proportional to 689,673.85, 1,034,511.98 and 216,395.53 is: 324,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,673.85 : 1,034,511.98 = 216,395.53 : x
  2. Step 2: Convert to fraction form
    689,673.85/1,034,511.98 = 216,395.53/x
  3. Step 3: Cross multiply
    689,673.85x = 1,034,511.98 × 216,395.53
  4. Step 4: Simplify right side
    689,673.85x = 223,863,767,121.47
  5. Step 5: Solve for x
    x = 223,863,767,121.47/689,673.85
  6. Step 6: Final answer
    x = 324,593.67

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.