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Finding the Fourth Proportional to 577,731.60, 797,254.74 and 319,618.26

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Solution

The fourth proportional to 577,731.60, 797,254.74 and 319,618.26 is: 441,064.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,731.60 : 797,254.74 = 319,618.26 : x
  2. Step 2: Convert to fraction form
    577,731.60/797,254.74 = 319,618.26/x
  3. Step 3: Cross multiply
    577,731.60x = 797,254.74 × 319,618.26
  4. Step 4: Simplify right side
    577,731.60x = 254,817,172,775.55
  5. Step 5: Solve for x
    x = 254,817,172,775.55/577,731.60
  6. Step 6: Final answer
    x = 441,064.97

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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.