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Finding the Fourth Proportional to 467,889.94, 645,689.60 and 253,031.50

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Solution

The fourth proportional to 467,889.94, 645,689.60 and 253,031.50 is: 349,184.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,889.94 : 645,689.60 = 253,031.50 : x
  2. Step 2: Convert to fraction form
    467,889.94/645,689.60 = 253,031.50/x
  3. Step 3: Cross multiply
    467,889.94x = 645,689.60 × 253,031.50
  4. Step 4: Simplify right side
    467,889.94x = 163,379,806,757.24
  5. Step 5: Solve for x
    x = 163,379,806,757.24/467,889.94
  6. Step 6: Final answer
    x = 349,184.27

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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.