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Finding the Fourth Proportional to 885,105,309.60, 1,327,657,964.40 and 885,105,309.60

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Solution

The fourth proportional to 885,105,309.60, 1,327,657,964.40 and 885,105,309.60 is: 1,327,657,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,105,309.60 : 1,327,657,964.40 = 885,105,309.60 : x
  2. Step 2: Convert to fraction form
    885,105,309.60/1,327,657,964.40 = 885,105,309.60/x
  3. Step 3: Cross multiply
    885,105,309.60x = 1,327,657,964.40 × 885,105,309.60
  4. Step 4: Simplify right side
    885,105,309.60x = 1,175,117,113,623,168,000
  5. Step 5: Solve for x
    x = 1,175,117,113,623,168,000/885,105,309.60
  6. Step 6: Final answer
    x = 1,327,657,964.40

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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.