Home / 691,436.74-1,037,154.87-166,124.74

Finding the Fourth Proportional to 691,436.74, 1,037,154.87 and 166,124.74

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Solution

The fourth proportional to 691,436.74, 1,037,154.87 and 166,124.74 is: 249,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,436.74 : 1,037,154.87 = 166,124.74 : x
  2. Step 2: Convert to fraction form
    691,436.74/1,037,154.87 = 166,124.74/x
  3. Step 3: Cross multiply
    691,436.74x = 1,037,154.87 × 166,124.74
  4. Step 4: Simplify right side
    691,436.74x = 172,297,083,118.48
  5. Step 5: Solve for x
    x = 172,297,083,118.48/691,436.74
  6. Step 6: Final answer
    x = 249,187.05

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Half scale
Find fourth proportional to 1,382,873.48, 2,074,309.74 and 332,249.48
Double scale
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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.