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Finding the Fourth Proportional to 577,298.15, 796,610.39 and 319,133.51

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Solution

The fourth proportional to 577,298.15, 796,610.39 and 319,133.51 is: 440,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,298.15 : 796,610.39 = 319,133.51 : x
  2. Step 2: Convert to fraction form
    577,298.15/796,610.39 = 319,133.51/x
  3. Step 3: Cross multiply
    577,298.15x = 796,610.39 × 319,133.51
  4. Step 4: Simplify right side
    577,298.15x = 254,225,069,863.17
  5. Step 5: Solve for x
    x = 254,225,069,863.17/577,298.15
  6. Step 6: Final answer
    x = 440,370.49

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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.