Home / 641,579.14-885,365.40-351,190.36

Finding the Fourth Proportional to 641,579.14, 885,365.40 and 351,190.36

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Solution

The fourth proportional to 641,579.14, 885,365.40 and 351,190.36 is: 484,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,579.14 : 885,365.40 = 351,190.36 : x
  2. Step 2: Convert to fraction form
    641,579.14/885,365.40 = 351,190.36/x
  3. Step 3: Cross multiply
    641,579.14x = 885,365.40 × 351,190.36
  4. Step 4: Simplify right side
    641,579.14x = 310,931,793,557.54
  5. Step 5: Solve for x
    x = 310,931,793,557.54/641,579.14
  6. Step 6: Final answer
    x = 484,635.14

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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.