Home / 683,311.20-1,025,404.20-399,001.20

Finding the Fourth Proportional to 683,311.20, 1,025,404.20 and 399,001.20

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Solution

The fourth proportional to 683,311.20, 1,025,404.20 and 399,001.20 is: 598,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,311.20 : 1,025,404.20 = 399,001.20 : x
  2. Step 2: Convert to fraction form
    683,311.20/1,025,404.20 = 399,001.20/x
  3. Step 3: Cross multiply
    683,311.20x = 1,025,404.20 × 399,001.20
  4. Step 4: Simplify right side
    683,311.20x = 409,137,506,285.04
  5. Step 5: Solve for x
    x = 409,137,506,285.04/683,311.20
  6. Step 6: Final answer
    x = 598,757.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.