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Finding the Fourth Proportional to 664,423,267.60, 996,809,083.80 and 255,492,758.80

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Solution

The fourth proportional to 664,423,267.60, 996,809,083.80 and 255,492,758.80 is: 383,306,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,423,267.60 : 996,809,083.80 = 255,492,758.80 : x
  2. Step 2: Convert to fraction form
    664,423,267.60/996,809,083.80 = 255,492,758.80/x
  3. Step 3: Cross multiply
    664,423,267.60x = 996,809,083.80 × 255,492,758.80
  4. Step 4: Simplify right side
    664,423,267.60x = 254,677,502,816,962,400
  5. Step 5: Solve for x
    x = 254,677,502,816,962,400/664,423,267.60
  6. Step 6: Final answer
    x = 383,306,117.10

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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.