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Finding the Fourth Proportional to 592,896.80, 889,460.40 and 172,186.40

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Solution

The fourth proportional to 592,896.80, 889,460.40 and 172,186.40 is: 258,313.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,896.80 : 889,460.40 = 172,186.40 : x
  2. Step 2: Convert to fraction form
    592,896.80/889,460.40 = 172,186.40/x
  3. Step 3: Cross multiply
    592,896.80x = 889,460.40 × 172,186.40
  4. Step 4: Simplify right side
    592,896.80x = 153,152,984,218.56
  5. Step 5: Solve for x
    x = 153,152,984,218.56/592,896.80
  6. Step 6: Final answer
    x = 258,313.06

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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.