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Finding the Fourth Proportional to 462,702.90, 638,526.39 and 258,754.22

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Solution

The fourth proportional to 462,702.90, 638,526.39 and 258,754.22 is: 357,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,702.90 : 638,526.39 = 258,754.22 : x
  2. Step 2: Convert to fraction form
    462,702.90/638,526.39 = 258,754.22/x
  3. Step 3: Cross multiply
    462,702.90x = 638,526.39 × 258,754.22
  4. Step 4: Simplify right side
    462,702.90x = 165,221,394,801.23
  5. Step 5: Solve for x
    x = 165,221,394,801.23/462,702.90
  6. Step 6: Final answer
    x = 357,078.80

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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.