Home / 613,961.47-921,066.76-193,139.47

Finding the Fourth Proportional to 613,961.47, 921,066.76 and 193,139.47

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Solution

The fourth proportional to 613,961.47, 921,066.76 and 193,139.47 is: 289,748.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,961.47 : 921,066.76 = 193,139.47 : x
  2. Step 2: Convert to fraction form
    613,961.47/921,066.76 = 193,139.47/x
  3. Step 3: Cross multiply
    613,961.47x = 921,066.76 × 193,139.47
  4. Step 4: Simplify right side
    613,961.47x = 177,894,341,255.68
  5. Step 5: Solve for x
    x = 177,894,341,255.68/613,961.47
  6. Step 6: Final answer
    x = 289,748.38

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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.