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Finding the Fourth Proportional to 885,736,892.10, 1,328,605,338.15 and 368,538,510.90

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Solution

The fourth proportional to 885,736,892.10, 1,328,605,338.15 and 368,538,510.90 is: 552,807,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,892.10 : 1,328,605,338.15 = 368,538,510.90 : x
  2. Step 2: Convert to fraction form
    885,736,892.10/1,328,605,338.15 = 368,538,510.90/x
  3. Step 3: Cross multiply
    885,736,892.10x = 1,328,605,338.15 × 368,538,510.90
  4. Step 4: Simplify right side
    885,736,892.10x = 489,642,232,895,591,936
  5. Step 5: Solve for x
    x = 489,642,232,895,591,936/885,736,892.10
  6. Step 6: Final answer
    x = 552,807,766.35

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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.