Home / 650,185.75-897,436.65-378,306.16

Finding the Fourth Proportional to 650,185.75, 897,436.65 and 378,306.16

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Solution

The fourth proportional to 650,185.75, 897,436.65 and 378,306.16 is: 522,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,185.75 : 897,436.65 = 378,306.16 : x
  2. Step 2: Convert to fraction form
    650,185.75/897,436.65 = 378,306.16/x
  3. Step 3: Cross multiply
    650,185.75x = 897,436.65 × 378,306.16
  4. Step 4: Simplify right side
    650,185.75x = 339,505,812,904.76
  5. Step 5: Solve for x
    x = 339,505,812,904.76/650,185.75
  6. Step 6: Final answer
    x = 522,167.42

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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.