Home / 691,156.45-953,680.30-385,165.77

Finding the Fourth Proportional to 691,156.45, 953,680.30 and 385,165.77

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Solution

The fourth proportional to 691,156.45, 953,680.30 and 385,165.77 is: 531,464.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,156.45 : 953,680.30 = 385,165.77 : x
  2. Step 2: Convert to fraction form
    691,156.45/953,680.30 = 385,165.77/x
  3. Step 3: Cross multiply
    691,156.45x = 953,680.30 × 385,165.77
  4. Step 4: Simplify right side
    691,156.45x = 367,325,007,083.33
  5. Step 5: Solve for x
    x = 367,325,007,083.33/691,156.45
  6. Step 6: Final answer
    x = 531,464.34

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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.