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Finding the Fourth Proportional to 663,451.26, 915,535.62 and 373,054.56

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Solution

The fourth proportional to 663,451.26, 915,535.62 and 373,054.56 is: 514,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,451.26 : 915,535.62 = 373,054.56 : x
  2. Step 2: Convert to fraction form
    663,451.26/915,535.62 = 373,054.56/x
  3. Step 3: Cross multiply
    663,451.26x = 915,535.62 × 373,054.56
  4. Step 4: Simplify right side
    663,451.26x = 341,544,737,883.43
  5. Step 5: Solve for x
    x = 341,544,737,883.43/663,451.26
  6. Step 6: Final answer
    x = 514,800.04

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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.