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Finding the Fourth Proportional to 911,446,858.40, 1,367,207,612.40 and 265,214,602.40

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Solution

The fourth proportional to 911,446,858.40, 1,367,207,612.40 and 265,214,602.40 is: 397,832,764.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,446,858.40 : 1,367,207,612.40 = 265,214,602.40 : x
  2. Step 2: Convert to fraction form
    911,446,858.40/1,367,207,612.40 = 265,214,602.40/x
  3. Step 3: Cross multiply
    911,446,858.40x = 1,367,207,612.40 × 265,214,602.40
  4. Step 4: Simplify right side
    911,446,858.40x = 362,603,423,320,919,360
  5. Step 5: Solve for x
    x = 362,603,423,320,919,360/911,446,858.40
  6. Step 6: Final answer
    x = 397,832,764.44

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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.