Home / 781,073.89-1,171,752.99-354,616.18

Finding the Fourth Proportional to 781,073.89, 1,171,752.99 and 354,616.18

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Solution

The fourth proportional to 781,073.89, 1,171,752.99 and 354,616.18 is: 531,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,073.89 : 1,171,752.99 = 354,616.18 : x
  2. Step 2: Convert to fraction form
    781,073.89/1,171,752.99 = 354,616.18/x
  3. Step 3: Cross multiply
    781,073.89x = 1,171,752.99 × 354,616.18
  4. Step 4: Simplify right side
    781,073.89x = 415,522,569,217.38
  5. Step 5: Solve for x
    x = 415,522,569,217.38/781,073.89
  6. Step 6: Final answer
    x = 531,988.81

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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.