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Finding the Fourth Proportional to 453,274.68, 625,488.23 and 262,316.78

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Solution

The fourth proportional to 453,274.68, 625,488.23 and 262,316.78 is: 361,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,274.68 : 625,488.23 = 262,316.78 : x
  2. Step 2: Convert to fraction form
    453,274.68/625,488.23 = 262,316.78/x
  3. Step 3: Cross multiply
    453,274.68x = 625,488.23 × 262,316.78
  4. Step 4: Simplify right side
    453,274.68x = 164,076,056,819.90
  5. Step 5: Solve for x
    x = 164,076,056,819.90/453,274.68
  6. Step 6: Final answer
    x = 361,979.31

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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.