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Finding the Fourth Proportional to 613,624.95, 846,920.75 and 372,039.84

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Solution

The fourth proportional to 613,624.95, 846,920.75 and 372,039.84 is: 513,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,624.95 : 846,920.75 = 372,039.84 : x
  2. Step 2: Convert to fraction form
    613,624.95/846,920.75 = 372,039.84/x
  3. Step 3: Cross multiply
    613,624.95x = 846,920.75 × 372,039.84
  4. Step 4: Simplify right side
    613,624.95x = 315,088,258,462.48
  5. Step 5: Solve for x
    x = 315,088,258,462.48/613,624.95
  6. Step 6: Final answer
    x = 513,486.71

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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.