Home / 712,040.64-982,622.20-406,132.56

Finding the Fourth Proportional to 712,040.64, 982,622.20 and 406,132.56

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Solution

The fourth proportional to 712,040.64, 982,622.20 and 406,132.56 is: 560,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,040.64 : 982,622.20 = 406,132.56 : x
  2. Step 2: Convert to fraction form
    712,040.64/982,622.20 = 406,132.56/x
  3. Step 3: Cross multiply
    712,040.64x = 982,622.20 × 406,132.56
  4. Step 4: Simplify right side
    712,040.64x = 399,074,869,598.83
  5. Step 5: Solve for x
    x = 399,074,869,598.83/712,040.64
  6. Step 6: Final answer
    x = 560,466.42

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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.