Home / 869,415.56-1,304,127.84-395,769.68

Finding the Fourth Proportional to 869,415.56, 1,304,127.84 and 395,769.68

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Solution

The fourth proportional to 869,415.56, 1,304,127.84 and 395,769.68 is: 593,656.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,415.56 : 1,304,127.84 = 395,769.68 : x
  2. Step 2: Convert to fraction form
    869,415.56/1,304,127.84 = 395,769.68/x
  3. Step 3: Cross multiply
    869,415.56x = 1,304,127.84 × 395,769.68
  4. Step 4: Simplify right side
    869,415.56x = 516,134,257,915.89
  5. Step 5: Solve for x
    x = 516,134,257,915.89/869,415.56
  6. Step 6: Final answer
    x = 593,656.57

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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.