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Finding the Fourth Proportional to 528,515,781.40, 792,773,672.10 and 528,515,781.40

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Solution

The fourth proportional to 528,515,781.40, 792,773,672.10 and 528,515,781.40 is: 792,773,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,515,781.40 : 792,773,672.10 = 528,515,781.40 : x
  2. Step 2: Convert to fraction form
    528,515,781.40/792,773,672.10 = 528,515,781.40/x
  3. Step 3: Cross multiply
    528,515,781.40x = 792,773,672.10 × 528,515,781.40
  4. Step 4: Simplify right side
    528,515,781.40x = 418,993,396,783,278,848
  5. Step 5: Solve for x
    x = 418,993,396,783,278,848/528,515,781.40
  6. Step 6: Final answer
    x = 792,773,672.10

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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.