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Finding the Fourth Proportional to 467,903.18, 645,708.32 and 253,043.24

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Solution

The fourth proportional to 467,903.18, 645,708.32 and 253,043.24 is: 349,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,903.18 : 645,708.32 = 253,043.24 : x
  2. Step 2: Convert to fraction form
    467,903.18/645,708.32 = 253,043.24/x
  3. Step 3: Cross multiply
    467,903.18x = 645,708.32 × 253,043.24
  4. Step 4: Simplify right side
    467,903.18x = 163,392,126,898.39
  5. Step 5: Solve for x
    x = 163,392,126,898.39/467,903.18
  6. Step 6: Final answer
    x = 349,200.72

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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.