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Finding the Fourth Proportional to 911,027.77, 1,257,372.15 and 529,276

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Solution

The fourth proportional to 911,027.77, 1,257,372.15 and 529,276 is: 730,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,027.77 : 1,257,372.15 = 529,276 : x
  2. Step 2: Convert to fraction form
    911,027.77/1,257,372.15 = 529,276/x
  3. Step 3: Cross multiply
    911,027.77x = 1,257,372.15 × 529,276
  4. Step 4: Simplify right side
    911,027.77x = 665,496,902,063.40
  5. Step 5: Solve for x
    x = 665,496,902,063.40/911,027.77
  6. Step 6: Final answer
    x = 730,490.25

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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.