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Finding the Fourth Proportional to 321,940,810.60, 482,911,215.90 and 321,940,810.60

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Solution

The fourth proportional to 321,940,810.60, 482,911,215.90 and 321,940,810.60 is: 482,911,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,940,810.60 : 482,911,215.90 = 321,940,810.60 : x
  2. Step 2: Convert to fraction form
    321,940,810.60/482,911,215.90 = 321,940,810.60/x
  3. Step 3: Cross multiply
    321,940,810.60x = 482,911,215.90 × 321,940,810.60
  4. Step 4: Simplify right side
    321,940,810.60x = 155,468,828,294,677,600
  5. Step 5: Solve for x
    x = 155,468,828,294,677,600/321,940,810.60
  6. Step 6: Final answer
    x = 482,911,215.90

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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.