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Finding the Fourth Proportional to 322,401.60, 483,602.40 and 197,812.80

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Solution

The fourth proportional to 322,401.60, 483,602.40 and 197,812.80 is: 296,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,401.60 : 483,602.40 = 197,812.80 : x
  2. Step 2: Convert to fraction form
    322,401.60/483,602.40 = 197,812.80/x
  3. Step 3: Cross multiply
    322,401.60x = 483,602.40 × 197,812.80
  4. Step 4: Simplify right side
    322,401.60x = 95,662,744,830.72
  5. Step 5: Solve for x
    x = 95,662,744,830.72/322,401.60
  6. Step 6: Final answer
    x = 296,719.20

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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.