Home / 1,377,501.66-1,900,939.86-765,638.73

Finding the Fourth Proportional to 1,377,501.66, 1,900,939.86 and 765,638.73

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Solution

The fourth proportional to 1,377,501.66, 1,900,939.86 and 765,638.73 is: 1,056,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,501.66 : 1,900,939.86 = 765,638.73 : x
  2. Step 2: Convert to fraction form
    1,377,501.66/1,900,939.86 = 765,638.73/x
  3. Step 3: Cross multiply
    1,377,501.66x = 1,900,939.86 × 765,638.73
  4. Step 4: Simplify right side
    1,377,501.66x = 1,455,433,180,216.78
  5. Step 5: Solve for x
    x = 1,455,433,180,216.78/1,377,501.66
  6. Step 6: Final answer
    x = 1,056,574.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.