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Finding the Fourth Proportional to 467,903.30, 645,708.49 and 253,043.36

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Solution

The fourth proportional to 467,903.30, 645,708.49 and 253,043.36 is: 349,200.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,903.30 : 645,708.49 = 253,043.36 : x
  2. Step 2: Convert to fraction form
    467,903.30/645,708.49 = 253,043.36/x
  3. Step 3: Cross multiply
    467,903.30x = 645,708.49 × 253,043.36
  4. Step 4: Simplify right side
    467,903.30x = 163,392,249,505.86
  5. Step 5: Solve for x
    x = 163,392,249,505.86/467,903.30
  6. Step 6: Final answer
    x = 349,200.89

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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.