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Finding the Fourth Proportional to 573,621.48, 860,443.56 and 208,870.38

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Solution

The fourth proportional to 573,621.48, 860,443.56 and 208,870.38 is: 313,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,621.48 : 860,443.56 = 208,870.38 : x
  2. Step 2: Convert to fraction form
    573,621.48/860,443.56 = 208,870.38/x
  3. Step 3: Cross multiply
    573,621.48x = 860,443.56 × 208,870.38
  4. Step 4: Simplify right side
    573,621.48x = 179,721,173,345.75
  5. Step 5: Solve for x
    x = 179,721,173,345.75/573,621.48
  6. Step 6: Final answer
    x = 313,309.70

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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.