Home / 691,067.12-953,688.40-385,174.96

Finding the Fourth Proportional to 691,067.12, 953,688.40 and 385,174.96

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Solution

The fourth proportional to 691,067.12, 953,688.40 and 385,174.96 is: 531,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,067.12 : 953,688.40 = 385,174.96 : x
  2. Step 2: Convert to fraction form
    691,067.12/953,688.40 = 385,174.96/x
  3. Step 3: Cross multiply
    691,067.12x = 953,688.40 × 385,174.96
  4. Step 4: Simplify right side
    691,067.12x = 367,336,891,322.46
  5. Step 5: Solve for x
    x = 367,336,891,322.46/691,067.12
  6. Step 6: Final answer
    x = 531,550.24

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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.