Home / 712,054.20-982,636.27-389,784.88

Finding the Fourth Proportional to 712,054.20, 982,636.27 and 389,784.88

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Solution

The fourth proportional to 712,054.20, 982,636.27 and 389,784.88 is: 537,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,054.20 : 982,636.27 = 389,784.88 : x
  2. Step 2: Convert to fraction form
    712,054.20/982,636.27 = 389,784.88/x
  3. Step 3: Cross multiply
    712,054.20x = 982,636.27 × 389,784.88
  4. Step 4: Simplify right side
    712,054.20x = 383,016,760,585.60
  5. Step 5: Solve for x
    x = 383,016,760,585.60/712,054.20
  6. Step 6: Final answer
    x = 537,903.94

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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.