Home / 783,719.70-1,175,579.55-409,857.30

Finding the Fourth Proportional to 783,719.70, 1,175,579.55 and 409,857.30

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Solution

The fourth proportional to 783,719.70, 1,175,579.55 and 409,857.30 is: 614,785.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,719.70 : 1,175,579.55 = 409,857.30 : x
  2. Step 2: Convert to fraction form
    783,719.70/1,175,579.55 = 409,857.30/x
  3. Step 3: Cross multiply
    783,719.70x = 1,175,579.55 × 409,857.30
  4. Step 4: Simplify right side
    783,719.70x = 481,819,860,298.22
  5. Step 5: Solve for x
    x = 481,819,860,298.22/783,719.70
  6. Step 6: Final answer
    x = 614,785.95

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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.