Home / 565,291.30-780,145.38-323,649.66

Finding the Fourth Proportional to 565,291.30, 780,145.38 and 323,649.66

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Solution

The fourth proportional to 565,291.30, 780,145.38 and 323,649.66 is: 446,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,291.30 : 780,145.38 = 323,649.66 : x
  2. Step 2: Convert to fraction form
    565,291.30/780,145.38 = 323,649.66/x
  3. Step 3: Cross multiply
    565,291.30x = 780,145.38 × 323,649.66
  4. Step 4: Simplify right side
    565,291.30x = 252,493,786,987.57
  5. Step 5: Solve for x
    x = 252,493,786,987.57/565,291.30
  6. Step 6: Final answer
    x = 446,661.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.