Home / 712,266.56-982,927.98-389,976.74

Finding the Fourth Proportional to 712,266.56, 982,927.98 and 389,976.74

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Solution

The fourth proportional to 712,266.56, 982,927.98 and 389,976.74 is: 538,167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,266.56 : 982,927.98 = 389,976.74 : x
  2. Step 2: Convert to fraction form
    712,266.56/982,927.98 = 389,976.74/x
  3. Step 3: Cross multiply
    712,266.56x = 982,927.98 × 389,976.74
  4. Step 4: Simplify right side
    712,266.56x = 383,319,049,295.19
  5. Step 5: Solve for x
    x = 383,319,049,295.19/712,266.56
  6. Step 6: Final answer
    x = 538,167.97

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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.