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Finding the Fourth Proportional to 884,490.48, 1,326,728.43 and 253,404.90

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Solution

The fourth proportional to 884,490.48, 1,326,728.43 and 253,404.90 is: 380,105.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,490.48 : 1,326,728.43 = 253,404.90 : x
  2. Step 2: Convert to fraction form
    884,490.48/1,326,728.43 = 253,404.90/x
  3. Step 3: Cross multiply
    884,490.48x = 1,326,728.43 × 253,404.90
  4. Step 4: Simplify right side
    884,490.48x = 336,199,485,131.31
  5. Step 5: Solve for x
    x = 336,199,485,131.31/884,490.48
  6. Step 6: Final answer
    x = 380,105.26

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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.