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Finding the Fourth Proportional to 217,697.60, 326,546.40 and 162,401.60

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Solution

The fourth proportional to 217,697.60, 326,546.40 and 162,401.60 is: 243,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,697.60 : 326,546.40 = 162,401.60 : x
  2. Step 2: Convert to fraction form
    217,697.60/326,546.40 = 162,401.60/x
  3. Step 3: Cross multiply
    217,697.60x = 326,546.40 × 162,401.60
  4. Step 4: Simplify right side
    217,697.60x = 53,031,657,834.24
  5. Step 5: Solve for x
    x = 53,031,657,834.24/217,697.60
  6. Step 6: Final answer
    x = 243,602.40

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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.