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Finding the Fourth Proportional to 577,409.60, 865,531.20 and 262,092.80

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Solution

The fourth proportional to 577,409.60, 865,531.20 and 262,092.80 is: 392,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,409.60 : 865,531.20 = 262,092.80 : x
  2. Step 2: Convert to fraction form
    577,409.60/865,531.20 = 262,092.80/x
  3. Step 3: Cross multiply
    577,409.60x = 865,531.20 × 262,092.80
  4. Step 4: Simplify right side
    577,409.60x = 226,849,495,695.36
  5. Step 5: Solve for x
    x = 226,849,495,695.36/577,409.60
  6. Step 6: Final answer
    x = 392,874.48

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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.