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Finding the Fourth Proportional to 326,060.76, 488,368.50 and 250,625.40

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Solution

The fourth proportional to 326,060.76, 488,368.50 and 250,625.40 is: 375,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,060.76 : 488,368.50 = 250,625.40 : x
  2. Step 2: Convert to fraction form
    326,060.76/488,368.50 = 250,625.40/x
  3. Step 3: Cross multiply
    326,060.76x = 488,368.50 × 250,625.40
  4. Step 4: Simplify right side
    326,060.76x = 122,397,550,659.90
  5. Step 5: Solve for x
    x = 122,397,550,659.90/326,060.76
  6. Step 6: Final answer
    x = 375,382.65

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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.