Home / 1,188,176.20-1,783,139.10-478,713.40

Finding the Fourth Proportional to 1,188,176.20, 1,783,139.10 and 478,713.40

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Solution

The fourth proportional to 1,188,176.20, 1,783,139.10 and 478,713.40 is: 718,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,176.20 : 1,783,139.10 = 478,713.40 : x
  2. Step 2: Convert to fraction form
    1,188,176.20/1,783,139.10 = 478,713.40/x
  3. Step 3: Cross multiply
    1,188,176.20x = 1,783,139.10 × 478,713.40
  4. Step 4: Simplify right side
    1,188,176.20x = 853,612,581,233.94
  5. Step 5: Solve for x
    x = 853,612,581,233.94/1,188,176.20
  6. Step 6: Final answer
    x = 718,422.55

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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.