Home / 723,860.68-998,928.93-401,570.78

Finding the Fourth Proportional to 723,860.68, 998,928.93 and 401,570.78

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Solution

The fourth proportional to 723,860.68, 998,928.93 and 401,570.78 is: 554,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,860.68 : 998,928.93 = 401,570.78 : x
  2. Step 2: Convert to fraction form
    723,860.68/998,928.93 = 401,570.78/x
  3. Step 3: Cross multiply
    723,860.68x = 998,928.93 × 401,570.78
  4. Step 4: Simplify right side
    723,860.68x = 401,140,669,584.67
  5. Step 5: Solve for x
    x = 401,140,669,584.67/723,860.68
  6. Step 6: Final answer
    x = 554,168.34

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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.