Home / 1,781,680.64-2,672,236.48-519,212.96

Finding the Fourth Proportional to 1,781,680.64, 2,672,236.48 and 519,212.96

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Solution

The fourth proportional to 1,781,680.64, 2,672,236.48 and 519,212.96 is: 778,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,680.64 : 2,672,236.48 = 519,212.96 : x
  2. Step 2: Convert to fraction form
    1,781,680.64/2,672,236.48 = 519,212.96/x
  3. Step 3: Cross multiply
    1,781,680.64x = 2,672,236.48 × 519,212.96
  4. Step 4: Simplify right side
    1,781,680.64x = 1,387,459,812,600.78
  5. Step 5: Solve for x
    x = 1,387,459,812,600.78/1,781,680.64
  6. Step 6: Final answer
    x = 778,736.54

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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.