Home / 738,528.86-1,019,169.86-398,997.11

Finding the Fourth Proportional to 738,528.86, 1,019,169.86 and 398,997.11

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Solution

The fourth proportional to 738,528.86, 1,019,169.86 and 398,997.11 is: 550,616.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,528.86 : 1,019,169.86 = 398,997.11 : x
  2. Step 2: Convert to fraction form
    738,528.86/1,019,169.86 = 398,997.11/x
  3. Step 3: Cross multiply
    738,528.86x = 1,019,169.86 × 398,997.11
  4. Step 4: Simplify right side
    738,528.86x = 406,645,821,648.27
  5. Step 5: Solve for x
    x = 406,645,821,648.27/738,528.86
  6. Step 6: Final answer
    x = 550,616.02

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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.