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Finding the Fourth Proportional to 326,339,512.80, 488,375,528.40 and 299,129,733.60

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Solution

The fourth proportional to 326,339,512.80, 488,375,528.40 and 299,129,733.60 is: 447,655,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,339,512.80 : 488,375,528.40 = 299,129,733.60 : x
  2. Step 2: Convert to fraction form
    326,339,512.80/488,375,528.40 = 299,129,733.60/x
  3. Step 3: Cross multiply
    326,339,512.80x = 488,375,528.40 × 299,129,733.60
  4. Step 4: Simplify right side
    326,339,512.80x = 146,087,641,707,051,232
  5. Step 5: Solve for x
    x = 146,087,641,707,051,232/326,339,512.80
  6. Step 6: Final answer
    x = 447,655,389.49

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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.