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Finding the Fourth Proportional to 577,574.30, 865,698.09 and 361,530.14

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Solution

The fourth proportional to 577,574.30, 865,698.09 and 361,530.14 is: 541,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,574.30 : 865,698.09 = 361,530.14 : x
  2. Step 2: Convert to fraction form
    577,574.30/865,698.09 = 361,530.14/x
  3. Step 3: Cross multiply
    577,574.30x = 865,698.09 × 361,530.14
  4. Step 4: Simplify right side
    577,574.30x = 312,975,951,675.43
  5. Step 5: Solve for x
    x = 312,975,951,675.43/577,574.30
  6. Step 6: Final answer
    x = 541,879.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.