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Finding the Fourth Proportional to 554,359.74, 765,016.50 and 299,710.86

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Solution

The fourth proportional to 554,359.74, 765,016.50 and 299,710.86 is: 413,601.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,359.74 : 765,016.50 = 299,710.86 : x
  2. Step 2: Convert to fraction form
    554,359.74/765,016.50 = 299,710.86/x
  3. Step 3: Cross multiply
    554,359.74x = 765,016.50 × 299,710.86
  4. Step 4: Simplify right side
    554,359.74x = 229,283,753,129.19
  5. Step 5: Solve for x
    x = 229,283,753,129.19/554,359.74
  6. Step 6: Final answer
    x = 413,601.02

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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.