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Finding the Fourth Proportional to 577,218.43, 796,492.43 and 319,060.51

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Solution

The fourth proportional to 577,218.43, 796,492.43 and 319,060.51 is: 440,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,218.43 : 796,492.43 = 319,060.51 : x
  2. Step 2: Convert to fraction form
    577,218.43/796,492.43 = 319,060.51/x
  3. Step 3: Cross multiply
    577,218.43x = 796,492.43 × 319,060.51
  4. Step 4: Simplify right side
    577,218.43x = 254,129,280,926.94
  5. Step 5: Solve for x
    x = 254,129,280,926.94/577,218.43
  6. Step 6: Final answer
    x = 440,265.36

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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.