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Finding the Fourth Proportional to 653,232.90, 979,467.98 and 253,406.47

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Solution

The fourth proportional to 653,232.90, 979,467.98 and 253,406.47 is: 379,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,232.90 : 979,467.98 = 253,406.47 : x
  2. Step 2: Convert to fraction form
    653,232.90/979,467.98 = 253,406.47/x
  3. Step 3: Cross multiply
    653,232.90x = 979,467.98 × 253,406.47
  4. Step 4: Simplify right side
    653,232.90x = 248,203,518,392.49
  5. Step 5: Solve for x
    x = 248,203,518,392.49/653,232.90
  6. Step 6: Final answer
    x = 379,961.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.