Home / 712,800.56-983,656.60-386,107.36

Finding the Fourth Proportional to 712,800.56, 983,656.60 and 386,107.36

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Solution

The fourth proportional to 712,800.56, 983,656.60 and 386,107.36 is: 532,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,800.56 : 983,656.60 = 386,107.36 : x
  2. Step 2: Convert to fraction form
    712,800.56/983,656.60 = 386,107.36/x
  3. Step 3: Cross multiply
    712,800.56x = 983,656.60 × 386,107.36
  4. Step 4: Simplify right side
    712,800.56x = 379,797,052,972.58
  5. Step 5: Solve for x
    x = 379,797,052,972.58/712,800.56
  6. Step 6: Final answer
    x = 532,823.73

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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.