Home / 693,196.80-1,039,795.20-219,919.20

Finding the Fourth Proportional to 693,196.80, 1,039,795.20 and 219,919.20

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Solution

The fourth proportional to 693,196.80, 1,039,795.20 and 219,919.20 is: 329,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,196.80 : 1,039,795.20 = 219,919.20 : x
  2. Step 2: Convert to fraction form
    693,196.80/1,039,795.20 = 219,919.20/x
  3. Step 3: Cross multiply
    693,196.80x = 1,039,795.20 × 219,919.20
  4. Step 4: Simplify right side
    693,196.80x = 228,670,928,547.84
  5. Step 5: Solve for x
    x = 228,670,928,547.84/693,196.80
  6. Step 6: Final answer
    x = 329,878.80

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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.