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Finding the Fourth Proportional to 501,782.72, 753,060.18 and 291,568.28

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Solution

The fourth proportional to 501,782.72, 753,060.18 and 291,568.28 is: 437,576.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,782.72 : 753,060.18 = 291,568.28 : x
  2. Step 2: Convert to fraction form
    501,782.72/753,060.18 = 291,568.28/x
  3. Step 3: Cross multiply
    501,782.72x = 753,060.18 × 291,568.28
  4. Step 4: Simplify right side
    501,782.72x = 219,568,461,419.09
  5. Step 5: Solve for x
    x = 219,568,461,419.09/501,782.72
  6. Step 6: Final answer
    x = 437,576.77

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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.