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Finding the Fourth Proportional to 577,979.40, 797,635.98 and 357,265.74

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Solution

The fourth proportional to 577,979.40, 797,635.98 and 357,265.74 is: 493,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,979.40 : 797,635.98 = 357,265.74 : x
  2. Step 2: Convert to fraction form
    577,979.40/797,635.98 = 357,265.74/x
  3. Step 3: Cross multiply
    577,979.40x = 797,635.98 × 357,265.74
  4. Step 4: Simplify right side
    577,979.40x = 284,968,008,645.33
  5. Step 5: Solve for x
    x = 284,968,008,645.33/577,979.40
  6. Step 6: Final answer
    x = 493,041.81

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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.