Home / 723,777.90-998,933.10-401,591.79

Finding the Fourth Proportional to 723,777.90, 998,933.10 and 401,591.79

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Solution

The fourth proportional to 723,777.90, 998,933.10 and 401,591.79 is: 554,263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,777.90 : 998,933.10 = 401,591.79 : x
  2. Step 2: Convert to fraction form
    723,777.90/998,933.10 = 401,591.79/x
  3. Step 3: Cross multiply
    723,777.90x = 998,933.10 × 401,591.79
  4. Step 4: Simplify right side
    723,777.90x = 401,163,331,719.25
  5. Step 5: Solve for x
    x = 401,163,331,719.25/723,777.90
  6. Step 6: Final answer
    x = 554,263.03

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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.