Home / 499,021.48-688,648.96-284,161.52

Finding the Fourth Proportional to 499,021.48, 688,648.96 and 284,161.52

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Solution

The fourth proportional to 499,021.48, 688,648.96 and 284,161.52 is: 392,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,021.48 : 688,648.96 = 284,161.52 : x
  2. Step 2: Convert to fraction form
    499,021.48/688,648.96 = 284,161.52/x
  3. Step 3: Cross multiply
    499,021.48x = 688,648.96 × 284,161.52
  4. Step 4: Simplify right side
    499,021.48x = 195,687,535,220.02
  5. Step 5: Solve for x
    x = 195,687,535,220.02/499,021.48
  6. Step 6: Final answer
    x = 392,142.51

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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.