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Finding the Fourth Proportional to 453,865.62, 626,418.54 and 262,878.96

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Solution

The fourth proportional to 453,865.62, 626,418.54 and 262,878.96 is: 362,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,865.62 : 626,418.54 = 262,878.96 : x
  2. Step 2: Convert to fraction form
    453,865.62/626,418.54 = 262,878.96/x
  3. Step 3: Cross multiply
    453,865.62x = 626,418.54 × 262,878.96
  4. Step 4: Simplify right side
    453,865.62x = 164,672,254,319.92
  5. Step 5: Solve for x
    x = 164,672,254,319.92/453,865.62
  6. Step 6: Final answer
    x = 362,821.61

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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.