Home / 913,997.57-1,370,101.48-381,670.83

Finding the Fourth Proportional to 913,997.57, 1,370,101.48 and 381,670.83

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Solution

The fourth proportional to 913,997.57, 1,370,101.48 and 381,670.83 is: 572,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,997.57 : 1,370,101.48 = 381,670.83 : x
  2. Step 2: Convert to fraction form
    913,997.57/1,370,101.48 = 381,670.83/x
  3. Step 3: Cross multiply
    913,997.57x = 1,370,101.48 × 381,670.83
  4. Step 4: Simplify right side
    913,997.57x = 522,927,768,101.65
  5. Step 5: Solve for x
    x = 522,927,768,101.65/913,997.57
  6. Step 6: Final answer
    x = 572,132.56

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1.5x scale

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.