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Finding the Fourth Proportional to 323,467.20, 485,114.40 and 98,827.20

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Solution

The fourth proportional to 323,467.20, 485,114.40 and 98,827.20 is: 148,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,467.20 : 485,114.40 = 98,827.20 : x
  2. Step 2: Convert to fraction form
    323,467.20/485,114.40 = 98,827.20/x
  3. Step 3: Cross multiply
    323,467.20x = 485,114.40 × 98,827.20
  4. Step 4: Simplify right side
    323,467.20x = 47,942,497,831.68
  5. Step 5: Solve for x
    x = 47,942,497,831.68/323,467.20
  6. Step 6: Final answer
    x = 148,214.40

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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.