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Finding the Fourth Proportional to 561,877.43, 842,554.11 and 291,933

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Solution

The fourth proportional to 561,877.43, 842,554.11 and 291,933 is: 437,763.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,877.43 : 842,554.11 = 291,933 : x
  2. Step 2: Convert to fraction form
    561,877.43/842,554.11 = 291,933/x
  3. Step 3: Cross multiply
    561,877.43x = 842,554.11 × 291,933
  4. Step 4: Simplify right side
    561,877.43x = 245,969,348,447.26
  5. Step 5: Solve for x
    x = 245,969,348,447.26/561,877.43
  6. Step 6: Final answer
    x = 437,763.36

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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.