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Finding the Fourth Proportional to 683,273.61, 942,917.59 and 396,812.15

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Solution

The fourth proportional to 683,273.61, 942,917.59 and 396,812.15 is: 547,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,273.61 : 942,917.59 = 396,812.15 : x
  2. Step 2: Convert to fraction form
    683,273.61/942,917.59 = 396,812.15/x
  3. Step 3: Cross multiply
    683,273.61x = 942,917.59 × 396,812.15
  4. Step 4: Simplify right side
    683,273.61x = 374,161,150,594.06
  5. Step 5: Solve for x
    x = 374,161,150,594.06/683,273.61
  6. Step 6: Final answer
    x = 547,600.77

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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.