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Finding the Fourth Proportional to 383,661,773.70, 575,492,660.55 and 268,776,039.30

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Solution

The fourth proportional to 383,661,773.70, 575,492,660.55 and 268,776,039.30 is: 403,164,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,661,773.70 : 575,492,660.55 = 268,776,039.30 : x
  2. Step 2: Convert to fraction form
    383,661,773.70/575,492,660.55 = 268,776,039.30/x
  3. Step 3: Cross multiply
    383,661,773.70x = 575,492,660.55 × 268,776,039.30
  4. Step 4: Simplify right side
    383,661,773.70x = 154,678,637,948,848,352
  5. Step 5: Solve for x
    x = 154,678,637,948,848,352/383,661,773.70
  6. Step 6: Final answer
    x = 403,164,058.95

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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.