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Finding the Fourth Proportional to 593,198.70, 889,711.65 and 172,430.70

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Solution

The fourth proportional to 593,198.70, 889,711.65 and 172,430.70 is: 258,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,198.70 : 889,711.65 = 172,430.70 : x
  2. Step 2: Convert to fraction form
    593,198.70/889,711.65 = 172,430.70/x
  3. Step 3: Cross multiply
    593,198.70x = 889,711.65 × 172,430.70
  4. Step 4: Simplify right side
    593,198.70x = 153,413,602,607.66
  5. Step 5: Solve for x
    x = 153,413,602,607.66/593,198.70
  6. Step 6: Final answer
    x = 258,620.94

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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.