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Finding the Fourth Proportional to 310,267.92, 428,195.52 and 182,968.32

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Solution

The fourth proportional to 310,267.92, 428,195.52 and 182,968.32 is: 252,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,267.92 : 428,195.52 = 182,968.32 : x
  2. Step 2: Convert to fraction form
    310,267.92/428,195.52 = 182,968.32/x
  3. Step 3: Cross multiply
    310,267.92x = 428,195.52 × 182,968.32
  4. Step 4: Simplify right side
    310,267.92x = 78,346,214,925.93
  5. Step 5: Solve for x
    x = 78,346,214,925.93/310,267.92
  6. Step 6: Final answer
    x = 252,511.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.