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Finding the Fourth Proportional to 577,709.02, 797,223.48 and 319,579.24

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Solution

The fourth proportional to 577,709.02, 797,223.48 and 319,579.24 is: 441,011.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,709.02 : 797,223.48 = 319,579.24 : x
  2. Step 2: Convert to fraction form
    577,709.02/797,223.48 = 319,579.24/x
  3. Step 3: Cross multiply
    577,709.02x = 797,223.48 × 319,579.24
  4. Step 4: Simplify right side
    577,709.02x = 254,776,073,848.56
  5. Step 5: Solve for x
    x = 254,776,073,848.56/577,709.02
  6. Step 6: Final answer
    x = 441,011.07

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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.