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Finding the Fourth Proportional to 268,345,772.70, 402,518,659.05 and 268,345,772.70

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Solution

The fourth proportional to 268,345,772.70, 402,518,659.05 and 268,345,772.70 is: 402,518,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,345,772.70 : 402,518,659.05 = 268,345,772.70 : x
  2. Step 2: Convert to fraction form
    268,345,772.70/402,518,659.05 = 268,345,772.70/x
  3. Step 3: Cross multiply
    268,345,772.70x = 402,518,659.05 × 268,345,772.70
  4. Step 4: Simplify right side
    268,345,772.70x = 108,014,180,588,940,096
  5. Step 5: Solve for x
    x = 108,014,180,588,940,096/268,345,772.70
  6. Step 6: Final answer
    x = 402,518,659.05

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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.