Home / 579,312.40-799,407.48-324,614.56

Finding the Fourth Proportional to 579,312.40, 799,407.48 and 324,614.56

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Solution

The fourth proportional to 579,312.40, 799,407.48 and 324,614.56 is: 447,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,312.40 : 799,407.48 = 324,614.56 : x
  2. Step 2: Convert to fraction form
    579,312.40/799,407.48 = 324,614.56/x
  3. Step 3: Cross multiply
    579,312.40x = 799,407.48 × 324,614.56
  4. Step 4: Simplify right side
    579,312.40x = 259,499,307,380.91
  5. Step 5: Solve for x
    x = 259,499,307,380.91/579,312.40
  6. Step 6: Final answer
    x = 447,943.64

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

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