Home / 519,318.20-778,977.30-186,774.20

Finding the Fourth Proportional to 519,318.20, 778,977.30 and 186,774.20

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Solution

The fourth proportional to 519,318.20, 778,977.30 and 186,774.20 is: 280,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,318.20 : 778,977.30 = 186,774.20 : x
  2. Step 2: Convert to fraction form
    519,318.20/778,977.30 = 186,774.20/x
  3. Step 3: Cross multiply
    519,318.20x = 778,977.30 × 186,774.20
  4. Step 4: Simplify right side
    519,318.20x = 145,492,862,025.66
  5. Step 5: Solve for x
    x = 145,492,862,025.66/519,318.20
  6. Step 6: Final answer
    x = 280,161.30

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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.