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Finding the Fourth Proportional to 501,893.76, 751,856.40 and 291,088.88

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Solution

The fourth proportional to 501,893.76, 751,856.40 and 291,088.88 is: 436,062.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,893.76 : 751,856.40 = 291,088.88 : x
  2. Step 2: Convert to fraction form
    501,893.76/751,856.40 = 291,088.88/x
  3. Step 3: Cross multiply
    501,893.76x = 751,856.40 × 291,088.88
  4. Step 4: Simplify right side
    501,893.76x = 218,857,037,396.83
  5. Step 5: Solve for x
    x = 218,857,037,396.83/501,893.76
  6. Step 6: Final answer
    x = 436,062.48

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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.