Home / 783,712.20-1,175,568.30-409,849.80

Finding the Fourth Proportional to 783,712.20, 1,175,568.30 and 409,849.80

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Solution

The fourth proportional to 783,712.20, 1,175,568.30 and 409,849.80 is: 614,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,712.20 : 1,175,568.30 = 409,849.80 : x
  2. Step 2: Convert to fraction form
    783,712.20/1,175,568.30 = 409,849.80/x
  3. Step 3: Cross multiply
    783,712.20x = 1,175,568.30 × 409,849.80
  4. Step 4: Simplify right side
    783,712.20x = 481,806,432,641.34
  5. Step 5: Solve for x
    x = 481,806,432,641.34/783,712.20
  6. Step 6: Final answer
    x = 614,774.70

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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.