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Finding the Fourth Proportional to 518,972.24, 716,016.84 and 304,043.60

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Solution

The fourth proportional to 518,972.24, 716,016.84 and 304,043.60 is: 419,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,972.24 : 716,016.84 = 304,043.60 : x
  2. Step 2: Convert to fraction form
    518,972.24/716,016.84 = 304,043.60/x
  3. Step 3: Cross multiply
    518,972.24x = 716,016.84 × 304,043.60
  4. Step 4: Simplify right side
    518,972.24x = 217,700,337,694.22
  5. Step 5: Solve for x
    x = 217,700,337,694.22/518,972.24
  6. Step 6: Final answer
    x = 419,483.59

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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.