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Finding the Fourth Proportional to 519,204.89, 716,512.07 and 304,499.81

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Solution

The fourth proportional to 519,204.89, 716,512.07 and 304,499.81 is: 420,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,204.89 : 716,512.07 = 304,499.81 : x
  2. Step 2: Convert to fraction form
    519,204.89/716,512.07 = 304,499.81/x
  3. Step 3: Cross multiply
    519,204.89x = 716,512.07 × 304,499.81
  4. Step 4: Simplify right side
    519,204.89x = 218,177,786,356.40
  5. Step 5: Solve for x
    x = 218,177,786,356.40/519,204.89
  6. Step 6: Final answer
    x = 420,215.20

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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.