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Finding the Fourth Proportional to 217,607.60, 326,411.40 and 186,503.60

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Solution

The fourth proportional to 217,607.60, 326,411.40 and 186,503.60 is: 279,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,607.60 : 326,411.40 = 186,503.60 : x
  2. Step 2: Convert to fraction form
    217,607.60/326,411.40 = 186,503.60/x
  3. Step 3: Cross multiply
    217,607.60x = 326,411.40 × 186,503.60
  4. Step 4: Simplify right side
    217,607.60x = 60,876,901,181.04
  5. Step 5: Solve for x
    x = 60,876,901,181.04/217,607.60
  6. Step 6: Final answer
    x = 279,755.40

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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.