Home / 679,493.48-1,019,240.45-199,721.39

Finding the Fourth Proportional to 679,493.48, 1,019,240.45 and 199,721.39

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Solution

The fourth proportional to 679,493.48, 1,019,240.45 and 199,721.39 is: 299,582.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,493.48 : 1,019,240.45 = 199,721.39 : x
  2. Step 2: Convert to fraction form
    679,493.48/1,019,240.45 = 199,721.39/x
  3. Step 3: Cross multiply
    679,493.48x = 1,019,240.45 × 199,721.39
  4. Step 4: Simplify right side
    679,493.48x = 203,564,118,419.62
  5. Step 5: Solve for x
    x = 203,564,118,419.62/679,493.48
  6. Step 6: Final answer
    x = 299,582.15

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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.