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Finding the Fourth Proportional to 582,379.20, 803,649.60 and 327,715.20

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Solution

The fourth proportional to 582,379.20, 803,649.60 and 327,715.20 is: 452,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,379.20 : 803,649.60 = 327,715.20 : x
  2. Step 2: Convert to fraction form
    582,379.20/803,649.60 = 327,715.20/x
  3. Step 3: Cross multiply
    582,379.20x = 803,649.60 × 327,715.20
  4. Step 4: Simplify right side
    582,379.20x = 263,368,189,393.92
  5. Step 5: Solve for x
    x = 263,368,189,393.92/582,379.20
  6. Step 6: Final answer
    x = 452,228.01

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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.