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Finding the Fourth Proportional to 583,702.43, 805,474.62 and 338,668.20

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Solution

The fourth proportional to 583,702.43, 805,474.62 and 338,668.20 is: 467,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,702.43 : 805,474.62 = 338,668.20 : x
  2. Step 2: Convert to fraction form
    583,702.43/805,474.62 = 338,668.20/x
  3. Step 3: Cross multiply
    583,702.43x = 805,474.62 × 338,668.20
  4. Step 4: Simplify right side
    583,702.43x = 272,788,639,701.08
  5. Step 5: Solve for x
    x = 272,788,639,701.08/583,702.43
  6. Step 6: Final answer
    x = 467,341.97

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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.