Home / 816,753.87-1,225,189.17-217,711.89

Finding the Fourth Proportional to 816,753.87, 1,225,189.17 and 217,711.89

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Solution

The fourth proportional to 816,753.87, 1,225,189.17 and 217,711.89 is: 326,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,753.87 : 1,225,189.17 = 217,711.89 : x
  2. Step 2: Convert to fraction form
    816,753.87/1,225,189.17 = 217,711.89/x
  3. Step 3: Cross multiply
    816,753.87x = 1,225,189.17 × 217,711.89
  4. Step 4: Simplify right side
    816,753.87x = 266,738,249,808.23
  5. Step 5: Solve for x
    x = 266,738,249,808.23/816,753.87
  6. Step 6: Final answer
    x = 326,583.39

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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.