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Finding the Fourth Proportional to 2,765,961, 4,149,641.66 and 771,417

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Solution

The fourth proportional to 2,765,961, 4,149,641.66 and 771,417 is: 1,157,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765,961 : 4,149,641.66 = 771,417 : x
  2. Step 2: Convert to fraction form
    2,765,961/4,149,641.66 = 771,417/x
  3. Step 3: Cross multiply
    2,765,961x = 4,149,641.66 × 771,417
  4. Step 4: Simplify right side
    2,765,961x = 3,201,104,120,432.22
  5. Step 5: Solve for x
    x = 3,201,104,120,432.22/2,765,961
  6. Step 6: Final answer
    x = 1,157,320.77

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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.