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Finding the Fourth Proportional to 577,702.51, 797,214.54 and 319,572.73

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Solution

The fourth proportional to 577,702.51, 797,214.54 and 319,572.73 is: 441,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,702.51 : 797,214.54 = 319,572.73 : x
  2. Step 2: Convert to fraction form
    577,702.51/797,214.54 = 319,572.73/x
  3. Step 3: Cross multiply
    577,702.51x = 797,214.54 × 319,572.73
  4. Step 4: Simplify right side
    577,702.51x = 254,768,022,957.42
  5. Step 5: Solve for x
    x = 254,768,022,957.42/577,702.51
  6. Step 6: Final answer
    x = 441,002.11

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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.