Home / 691,135.16-953,732.75-385,244.87

Finding the Fourth Proportional to 691,135.16, 953,732.75 and 385,244.87

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Solution

The fourth proportional to 691,135.16, 953,732.75 and 385,244.87 is: 531,619.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,135.16 : 953,732.75 = 385,244.87 : x
  2. Step 2: Convert to fraction form
    691,135.16/953,732.75 = 385,244.87/x
  3. Step 3: Cross multiply
    691,135.16x = 953,732.75 × 385,244.87
  4. Step 4: Simplify right side
    691,135.16x = 367,420,642,593.60
  5. Step 5: Solve for x
    x = 367,420,642,593.60/691,135.16
  6. Step 6: Final answer
    x = 531,619.09

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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.