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Finding the Fourth Proportional to 519,318.25, 716,778.76 and 304,527.52

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Solution

The fourth proportional to 519,318.25, 716,778.76 and 304,527.52 is: 420,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,318.25 : 716,778.76 = 304,527.52 : x
  2. Step 2: Convert to fraction form
    519,318.25/716,778.76 = 304,527.52/x
  3. Step 3: Cross multiply
    519,318.25x = 716,778.76 × 304,527.52
  4. Step 4: Simplify right side
    519,318.25x = 218,278,858,171.48
  5. Step 5: Solve for x
    x = 218,278,858,171.48/519,318.25
  6. Step 6: Final answer
    x = 420,318.10

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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.