Home / 513,235.38-708,250.10-283,788.66

Finding the Fourth Proportional to 513,235.38, 708,250.10 and 283,788.66

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Solution

The fourth proportional to 513,235.38, 708,250.10 and 283,788.66 is: 391,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,235.38 : 708,250.10 = 283,788.66 : x
  2. Step 2: Convert to fraction form
    513,235.38/708,250.10 = 283,788.66/x
  3. Step 3: Cross multiply
    513,235.38x = 708,250.10 × 283,788.66
  4. Step 4: Simplify right side
    513,235.38x = 200,993,346,823.87
  5. Step 5: Solve for x
    x = 200,993,346,823.87/513,235.38
  6. Step 6: Final answer
    x = 391,620.21

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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.