Home / 712,234.61-982,883.29-389,944.62

Finding the Fourth Proportional to 712,234.61, 982,883.29 and 389,944.62

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Solution

The fourth proportional to 712,234.61, 982,883.29 and 389,944.62 is: 538,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,234.61 : 982,883.29 = 389,944.62 : x
  2. Step 2: Convert to fraction form
    712,234.61/982,883.29 = 389,944.62/x
  3. Step 3: Cross multiply
    712,234.61x = 982,883.29 × 389,944.62
  4. Step 4: Simplify right side
    712,234.61x = 383,270,050,048.54
  5. Step 5: Solve for x
    x = 383,270,050,048.54/712,234.61
  6. Step 6: Final answer
    x = 538,123.32

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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.