Home / 579,719.70-869,147.55-299,438.10

Finding the Fourth Proportional to 579,719.70, 869,147.55 and 299,438.10

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Solution

The fourth proportional to 579,719.70, 869,147.55 and 299,438.10 is: 448,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,719.70 : 869,147.55 = 299,438.10 : x
  2. Step 2: Convert to fraction form
    579,719.70/869,147.55 = 299,438.10/x
  3. Step 3: Cross multiply
    579,719.70x = 869,147.55 × 299,438.10
  4. Step 4: Simplify right side
    579,719.70x = 260,255,890,991.66
  5. Step 5: Solve for x
    x = 260,255,890,991.66/579,719.70
  6. Step 6: Final answer
    x = 448,934.01

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Double scale
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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.