Home / 686,367.12-947,184.97-376,269.15

Finding the Fourth Proportional to 686,367.12, 947,184.97 and 376,269.15

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Solution

The fourth proportional to 686,367.12, 947,184.97 and 376,269.15 is: 519,250.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,367.12 : 947,184.97 = 376,269.15 : x
  2. Step 2: Convert to fraction form
    686,367.12/947,184.97 = 376,269.15/x
  3. Step 3: Cross multiply
    686,367.12x = 947,184.97 × 376,269.15
  4. Step 4: Simplify right side
    686,367.12x = 356,396,483,554.68
  5. Step 5: Solve for x
    x = 356,396,483,554.68/686,367.12
  6. Step 6: Final answer
    x = 519,250.52

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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.