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Finding the Fourth Proportional to 326,043.90, 488,081.70 and 326,043.90

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Solution

The fourth proportional to 326,043.90, 488,081.70 and 326,043.90 is: 488,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,043.90 : 488,081.70 = 326,043.90 : x
  2. Step 2: Convert to fraction form
    326,043.90/488,081.70 = 326,043.90/x
  3. Step 3: Cross multiply
    326,043.90x = 488,081.70 × 326,043.90
  4. Step 4: Simplify right side
    326,043.90x = 159,136,060,986.63
  5. Step 5: Solve for x
    x = 159,136,060,986.63/326,043.90
  6. Step 6: Final answer
    x = 488,081.70

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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.