Home / 999,121.56-1,378,784.73-540,232.93

Finding the Fourth Proportional to 999,121.56, 1,378,784.73 and 540,232.93

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Solution

The fourth proportional to 999,121.56, 1,378,784.73 and 540,232.93 is: 745,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,121.56 : 1,378,784.73 = 540,232.93 : x
  2. Step 2: Convert to fraction form
    999,121.56/1,378,784.73 = 540,232.93/x
  3. Step 3: Cross multiply
    999,121.56x = 1,378,784.73 × 540,232.93
  4. Step 4: Simplify right side
    999,121.56x = 744,864,914,527.16
  5. Step 5: Solve for x
    x = 744,864,914,527.16/999,121.56
  6. Step 6: Final answer
    x = 745,519.81

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1.5x scale

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.