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Finding the Fourth Proportional to 592,940.80, 889,526.40 and 172,230.40

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Solution

The fourth proportional to 592,940.80, 889,526.40 and 172,230.40 is: 258,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,940.80 : 889,526.40 = 172,230.40 : x
  2. Step 2: Convert to fraction form
    592,940.80/889,526.40 = 172,230.40/x
  3. Step 3: Cross multiply
    592,940.80x = 889,526.40 × 172,230.40
  4. Step 4: Simplify right side
    592,940.80x = 153,203,487,682.56
  5. Step 5: Solve for x
    x = 153,203,487,682.56/592,940.80
  6. Step 6: Final answer
    x = 258,379.06

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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.