Home / 666,868.81-1,000,301.73-515,286.30

Finding the Fourth Proportional to 666,868.81, 1,000,301.73 and 515,286.30

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Solution

The fourth proportional to 666,868.81, 1,000,301.73 and 515,286.30 is: 772,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,868.81 : 1,000,301.73 = 515,286.30 : x
  2. Step 2: Convert to fraction form
    666,868.81/1,000,301.73 = 515,286.30/x
  3. Step 3: Cross multiply
    666,868.81x = 1,000,301.73 × 515,286.30
  4. Step 4: Simplify right side
    666,868.81x = 515,441,777,335.30
  5. Step 5: Solve for x
    x = 515,441,777,335.30/666,868.81
  6. Step 6: Final answer
    x = 772,928.30

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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.