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Finding the Fourth Proportional to 576,511.27, 865,298.46 and 292,401.20

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Solution

The fourth proportional to 576,511.27, 865,298.46 and 292,401.20 is: 438,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,511.27 : 865,298.46 = 292,401.20 : x
  2. Step 2: Convert to fraction form
    576,511.27/865,298.46 = 292,401.20/x
  3. Step 3: Cross multiply
    576,511.27x = 865,298.46 × 292,401.20
  4. Step 4: Simplify right side
    576,511.27x = 253,014,308,062.15
  5. Step 5: Solve for x
    x = 253,014,308,062.15/576,511.27
  6. Step 6: Final answer
    x = 438,871.40

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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.