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Finding the Fourth Proportional to 885,736,887.10, 1,328,605,330.65 and 368,538,505.90

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Solution

The fourth proportional to 885,736,887.10, 1,328,605,330.65 and 368,538,505.90 is: 552,807,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,887.10 : 1,328,605,330.65 = 368,538,505.90 : x
  2. Step 2: Convert to fraction form
    885,736,887.10/1,328,605,330.65 = 368,538,505.90/x
  3. Step 3: Cross multiply
    885,736,887.10x = 1,328,605,330.65 × 368,538,505.90
  4. Step 4: Simplify right side
    885,736,887.10x = 489,642,223,488,526,464
  5. Step 5: Solve for x
    x = 489,642,223,488,526,464/885,736,887.10
  6. Step 6: Final answer
    x = 552,807,758.85

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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.