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Finding the Fourth Proportional to 593,216.20, 889,737.90 and 172,448.20

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Solution

The fourth proportional to 593,216.20, 889,737.90 and 172,448.20 is: 258,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,216.20 : 889,737.90 = 172,448.20 : x
  2. Step 2: Convert to fraction form
    593,216.20/889,737.90 = 172,448.20/x
  3. Step 3: Cross multiply
    593,216.20x = 889,737.90 × 172,448.20
  4. Step 4: Simplify right side
    593,216.20x = 153,433,699,326.78
  5. Step 5: Solve for x
    x = 153,433,699,326.78/593,216.20
  6. Step 6: Final answer
    x = 258,647.18

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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.