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Finding the Fourth Proportional to 553,757,331.60, 830,635,997.40 and 553,757,331.60

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Solution

The fourth proportional to 553,757,331.60, 830,635,997.40 and 553,757,331.60 is: 830,635,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,757,331.60 : 830,635,997.40 = 553,757,331.60 : x
  2. Step 2: Convert to fraction form
    553,757,331.60/830,635,997.40 = 553,757,331.60/x
  3. Step 3: Cross multiply
    553,757,331.60x = 830,635,997.40 × 553,757,331.60
  4. Step 4: Simplify right side
    553,757,331.60x = 459,970,773,451,128,576
  5. Step 5: Solve for x
    x = 459,970,773,451,128,576/553,757,331.60
  6. Step 6: Final answer
    x = 830,635,997.40

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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.