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Finding the Fourth Proportional to 323,998.60, 485,997.90 and 224,271.40

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Solution

The fourth proportional to 323,998.60, 485,997.90 and 224,271.40 is: 336,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,998.60 : 485,997.90 = 224,271.40 : x
  2. Step 2: Convert to fraction form
    323,998.60/485,997.90 = 224,271.40/x
  3. Step 3: Cross multiply
    323,998.60x = 485,997.90 × 224,271.40
  4. Step 4: Simplify right side
    323,998.60x = 108,995,429,430.06
  5. Step 5: Solve for x
    x = 108,995,429,430.06/323,998.60
  6. Step 6: Final answer
    x = 336,407.10

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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.