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Finding the Fourth Proportional to 911,783,102.10, 1,368,346,499.55 and 366,915,671.70

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Solution

The fourth proportional to 911,783,102.10, 1,368,346,499.55 and 366,915,671.70 is: 550,643,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,783,102.10 : 1,368,346,499.55 = 366,915,671.70 : x
  2. Step 2: Convert to fraction form
    911,783,102.10/1,368,346,499.55 = 366,915,671.70/x
  3. Step 3: Cross multiply
    911,783,102.10x = 1,368,346,499.55 × 366,915,671.70
  4. Step 4: Simplify right side
    911,783,102.10x = 502,067,775,000,731,968
  5. Step 5: Solve for x
    x = 502,067,775,000,731,968/911,783,102.10
  6. Step 6: Final answer
    x = 550,643,868.97

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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.