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Finding the Fourth Proportional to 576,260.61, 863,691.06 and 407,830.17

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Solution

The fourth proportional to 576,260.61, 863,691.06 and 407,830.17 is: 611,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,260.61 : 863,691.06 = 407,830.17 : x
  2. Step 2: Convert to fraction form
    576,260.61/863,691.06 = 407,830.17/x
  3. Step 3: Cross multiply
    576,260.61x = 863,691.06 × 407,830.17
  4. Step 4: Simplify right side
    576,260.61x = 352,239,271,827.28
  5. Step 5: Solve for x
    x = 352,239,271,827.28/576,260.61
  6. Step 6: Final answer
    x = 611,249.95

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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.