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Finding the Fourth Proportional to 375,624,019.60, 563,436,029.40 and 266,784,902.80

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Solution

The fourth proportional to 375,624,019.60, 563,436,029.40 and 266,784,902.80 is: 400,177,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,624,019.60 : 563,436,029.40 = 266,784,902.80 : x
  2. Step 2: Convert to fraction form
    375,624,019.60/563,436,029.40 = 266,784,902.80/x
  3. Step 3: Cross multiply
    375,624,019.60x = 563,436,029.40 × 266,784,902.80
  4. Step 4: Simplify right side
    375,624,019.60x = 150,316,226,337,496,928
  5. Step 5: Solve for x
    x = 150,316,226,337,496,928/375,624,019.60
  6. Step 6: Final answer
    x = 400,177,354.20

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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.