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Finding the Fourth Proportional to 911,783,091.60, 1,368,346,483.80 and 366,915,661.20

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Solution

The fourth proportional to 911,783,091.60, 1,368,346,483.80 and 366,915,661.20 is: 550,643,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,783,091.60 : 1,368,346,483.80 = 366,915,661.20 : x
  2. Step 2: Convert to fraction form
    911,783,091.60/1,368,346,483.80 = 366,915,661.20/x
  3. Step 3: Cross multiply
    911,783,091.60x = 1,368,346,483.80 × 366,915,661.20
  4. Step 4: Simplify right side
    911,783,091.60x = 502,067,754,854,172,032
  5. Step 5: Solve for x
    x = 502,067,754,854,172,032/911,783,091.60
  6. Step 6: Final answer
    x = 550,643,853.21

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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.