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Finding the Fourth Proportional to 577,783.01, 797,364.35 and 319,655.85

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Solution

The fourth proportional to 577,783.01, 797,364.35 and 319,655.85 is: 441,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,783.01 : 797,364.35 = 319,655.85 : x
  2. Step 2: Convert to fraction form
    577,783.01/797,364.35 = 319,655.85/x
  3. Step 3: Cross multiply
    577,783.01x = 797,364.35 × 319,655.85
  4. Step 4: Simplify right side
    577,783.01x = 254,882,177,460.67
  5. Step 5: Solve for x
    x = 254,882,177,460.67/577,783.01
  6. Step 6: Final answer
    x = 441,138.24

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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.