Home / 716,077.53-988,174.08-393,788.52

Finding the Fourth Proportional to 716,077.53, 988,174.08 and 393,788.52

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Solution

The fourth proportional to 716,077.53, 988,174.08 and 393,788.52 is: 543,421.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,077.53 : 988,174.08 = 393,788.52 : x
  2. Step 2: Convert to fraction form
    716,077.53/988,174.08 = 393,788.52/x
  3. Step 3: Cross multiply
    716,077.53x = 988,174.08 × 393,788.52
  4. Step 4: Simplify right side
    716,077.53x = 389,131,608,465.56
  5. Step 5: Solve for x
    x = 389,131,608,465.56/716,077.53
  6. Step 6: Final answer
    x = 543,421.06

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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.