Home / 1,719.34-2,579.01-623.70

Finding the Fourth Proportional to 1,719.34, 2,579.01 and 623.70

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Solution

The fourth proportional to 1,719.34, 2,579.01 and 623.70 is: 935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.34 : 2,579.01 = 623.70 : x
  2. Step 2: Convert to fraction form
    1,719.34/2,579.01 = 623.70/x
  3. Step 3: Cross multiply
    1,719.34x = 2,579.01 × 623.70
  4. Step 4: Simplify right side
    1,719.34x = 1,608,525.42
  5. Step 5: Solve for x
    x = 1,608,525.42/1,719.34
  6. Step 6: Final answer
    x = 935.55

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Half scale
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Similar ratio
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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.