Home / 340,400.40-469,711.80-197,140.56

Finding the Fourth Proportional to 340,400.40, 469,711.80 and 197,140.56

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Solution

The fourth proportional to 340,400.40, 469,711.80 and 197,140.56 is: 272,030.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,400.40 : 469,711.80 = 197,140.56 : x
  2. Step 2: Convert to fraction form
    340,400.40/469,711.80 = 197,140.56/x
  3. Step 3: Cross multiply
    340,400.40x = 469,711.80 × 197,140.56
  4. Step 4: Simplify right side
    340,400.40x = 92,599,247,290.61
  5. Step 5: Solve for x
    x = 92,599,247,290.61/340,400.40
  6. Step 6: Final answer
    x = 272,030.37

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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.