Home / 712,324.43-983,059.46-406,407.55

Finding the Fourth Proportional to 712,324.43, 983,059.46 and 406,407.55

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Solution

The fourth proportional to 712,324.43, 983,059.46 and 406,407.55 is: 560,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,324.43 : 983,059.46 = 406,407.55 : x
  2. Step 2: Convert to fraction form
    712,324.43/983,059.46 = 406,407.55/x
  3. Step 3: Cross multiply
    712,324.43x = 983,059.46 × 406,407.55
  4. Step 4: Simplify right side
    712,324.43x = 399,522,789,428.35
  5. Step 5: Solve for x
    x = 399,522,789,428.35/712,324.43
  6. Step 6: Final answer
    x = 560,871.95

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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.