Home / 738,984.18-1,019,797.71-399,452.43

Finding the Fourth Proportional to 738,984.18, 1,019,797.71 and 399,452.43

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Solution

The fourth proportional to 738,984.18, 1,019,797.71 and 399,452.43 is: 551,244.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,984.18 : 1,019,797.71 = 399,452.43 : x
  2. Step 2: Convert to fraction form
    738,984.18/1,019,797.71 = 399,452.43/x
  3. Step 3: Cross multiply
    738,984.18x = 1,019,797.71 × 399,452.43
  4. Step 4: Simplify right side
    738,984.18x = 407,360,673,367.94
  5. Step 5: Solve for x
    x = 407,360,673,367.94/738,984.18
  6. Step 6: Final answer
    x = 551,244.11

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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.