Home / 928,845.20-1,391,424.60-534,400.40

Finding the Fourth Proportional to 928,845.20, 1,391,424.60 and 534,400.40

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Solution

The fourth proportional to 928,845.20, 1,391,424.60 and 534,400.40 is: 800,540.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,845.20 : 1,391,424.60 = 534,400.40 : x
  2. Step 2: Convert to fraction form
    928,845.20/1,391,424.60 = 534,400.40/x
  3. Step 3: Cross multiply
    928,845.20x = 1,391,424.60 × 534,400.40
  4. Step 4: Simplify right side
    928,845.20x = 743,577,862,809.84
  5. Step 5: Solve for x
    x = 743,577,862,809.84/928,845.20
  6. Step 6: Final answer
    x = 800,540.14

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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.