Home / 690,896.39-953,422.65-384,971.54

Finding the Fourth Proportional to 690,896.39, 953,422.65 and 384,971.54

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Solution

The fourth proportional to 690,896.39, 953,422.65 and 384,971.54 is: 531,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,896.39 : 953,422.65 = 384,971.54 : x
  2. Step 2: Convert to fraction form
    690,896.39/953,422.65 = 384,971.54/x
  3. Step 3: Cross multiply
    690,896.39x = 953,422.65 × 384,971.54
  4. Step 4: Simplify right side
    690,896.39x = 367,040,581,074.27
  5. Step 5: Solve for x
    x = 367,040,581,074.27/690,896.39
  6. Step 6: Final answer
    x = 531,252.72

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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.