Home / 566,821.57-782,249.13-312,172.69

Finding the Fourth Proportional to 566,821.57, 782,249.13 and 312,172.69

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Solution

The fourth proportional to 566,821.57, 782,249.13 and 312,172.69 is: 430,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,821.57 : 782,249.13 = 312,172.69 : x
  2. Step 2: Convert to fraction form
    566,821.57/782,249.13 = 312,172.69/x
  3. Step 3: Cross multiply
    566,821.57x = 782,249.13 × 312,172.69
  4. Step 4: Simplify right side
    566,821.57x = 244,196,815,162.26
  5. Step 5: Solve for x
    x = 244,196,815,162.26/566,821.57
  6. Step 6: Final answer
    x = 430,817.79

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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.