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Finding the Fourth Proportional to 577,729.72, 797,485.62 and 517,191.58

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Solution

The fourth proportional to 577,729.72, 797,485.62 and 517,191.58 is: 713,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,729.72 : 797,485.62 = 517,191.58 : x
  2. Step 2: Convert to fraction form
    577,729.72/797,485.62 = 517,191.58/x
  3. Step 3: Cross multiply
    577,729.72x = 797,485.62 × 517,191.58
  4. Step 4: Simplify right side
    577,729.72x = 412,452,847,835.08
  5. Step 5: Solve for x
    x = 412,452,847,835.08/577,729.72
  6. Step 6: Final answer
    x = 713,920.08

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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.