Home / 1,217,831.56-1,680,581.01-666,544.60

Finding the Fourth Proportional to 1,217,831.56, 1,680,581.01 and 666,544.60

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Solution

The fourth proportional to 1,217,831.56, 1,680,581.01 and 666,544.60 is: 919,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,831.56 : 1,680,581.01 = 666,544.60 : x
  2. Step 2: Convert to fraction form
    1,217,831.56/1,680,581.01 = 666,544.60/x
  3. Step 3: Cross multiply
    1,217,831.56x = 1,680,581.01 × 666,544.60
  4. Step 4: Simplify right side
    1,217,831.56x = 1,120,182,197,078.05
  5. Step 5: Solve for x
    x = 1,120,182,197,078.05/1,217,831.56
  6. Step 6: Final answer
    x = 919,817.02

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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.