Home / 691,158.46-953,683.06-385,167.76

Finding the Fourth Proportional to 691,158.46, 953,683.06 and 385,167.76

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Solution

The fourth proportional to 691,158.46, 953,683.06 and 385,167.76 is: 531,467.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,158.46 : 953,683.06 = 385,167.76 : x
  2. Step 2: Convert to fraction form
    691,158.46/953,683.06 = 385,167.76/x
  3. Step 3: Cross multiply
    691,158.46x = 953,683.06 × 385,167.76
  4. Step 4: Simplify right side
    691,158.46x = 367,327,967,970.15
  5. Step 5: Solve for x
    x = 367,327,967,970.15/691,158.46
  6. Step 6: Final answer
    x = 531,467.08

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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.