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Finding the Fourth Proportional to 369,093.60, 553,640.40 and 132,460.20

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Solution

The fourth proportional to 369,093.60, 553,640.40 and 132,460.20 is: 198,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,093.60 : 553,640.40 = 132,460.20 : x
  2. Step 2: Convert to fraction form
    369,093.60/553,640.40 = 132,460.20/x
  3. Step 3: Cross multiply
    369,093.60x = 553,640.40 × 132,460.20
  4. Step 4: Simplify right side
    369,093.60x = 73,335,318,112.08
  5. Step 5: Solve for x
    x = 73,335,318,112.08/369,093.60
  6. Step 6: Final answer
    x = 198,690.30

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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.