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Finding the Fourth Proportional to 295,272.60, 442,908.90 and 274,277.40

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Solution

The fourth proportional to 295,272.60, 442,908.90 and 274,277.40 is: 411,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,272.60 : 442,908.90 = 274,277.40 : x
  2. Step 2: Convert to fraction form
    295,272.60/442,908.90 = 274,277.40/x
  3. Step 3: Cross multiply
    295,272.60x = 442,908.90 × 274,277.40
  4. Step 4: Simplify right side
    295,272.60x = 121,479,901,528.86
  5. Step 5: Solve for x
    x = 121,479,901,528.86/295,272.60
  6. Step 6: Final answer
    x = 411,416.10

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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.