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Finding the Fourth Proportional to 582,563.45, 803,921.24 and 324,440.30

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Solution

The fourth proportional to 582,563.45, 803,921.24 and 324,440.30 is: 447,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,563.45 : 803,921.24 = 324,440.30 : x
  2. Step 2: Convert to fraction form
    582,563.45/803,921.24 = 324,440.30/x
  3. Step 3: Cross multiply
    582,563.45x = 803,921.24 × 324,440.30
  4. Step 4: Simplify right side
    582,563.45x = 260,824,451,102.88
  5. Step 5: Solve for x
    x = 260,824,451,102.88/582,563.45
  6. Step 6: Final answer
    x = 447,718.53

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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.