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Finding the Fourth Proportional to 468,042.22, 645,897.54 and 253,181.62

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Solution

The fourth proportional to 468,042.22, 645,897.54 and 253,181.62 is: 349,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,042.22 : 645,897.54 = 253,181.62 : x
  2. Step 2: Convert to fraction form
    468,042.22/645,897.54 = 253,181.62/x
  3. Step 3: Cross multiply
    468,042.22x = 645,897.54 × 253,181.62
  4. Step 4: Simplify right side
    468,042.22x = 163,529,385,531.22
  5. Step 5: Solve for x
    x = 163,529,385,531.22/468,042.22
  6. Step 6: Final answer
    x = 349,390.24

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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.