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Finding the Fourth Proportional to 426,562,404.40, 639,843,606.60 and 377,244,679.60

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Solution

The fourth proportional to 426,562,404.40, 639,843,606.60 and 377,244,679.60 is: 565,867,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,562,404.40 : 639,843,606.60 = 377,244,679.60 : x
  2. Step 2: Convert to fraction form
    426,562,404.40/639,843,606.60 = 377,244,679.60/x
  3. Step 3: Cross multiply
    426,562,404.40x = 639,843,606.60 × 377,244,679.60
  4. Step 4: Simplify right side
    426,562,404.40x = 241,377,596,365,925,472
  5. Step 5: Solve for x
    x = 241,377,596,365,925,472/426,562,404.40
  6. Step 6: Final answer
    x = 565,867,019.40

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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.