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Finding the Fourth Proportional to 472,624.20, 708,936.30 and 173,005.20

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Solution

The fourth proportional to 472,624.20, 708,936.30 and 173,005.20 is: 259,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,624.20 : 708,936.30 = 173,005.20 : x
  2. Step 2: Convert to fraction form
    472,624.20/708,936.30 = 173,005.20/x
  3. Step 3: Cross multiply
    472,624.20x = 708,936.30 × 173,005.20
  4. Step 4: Simplify right side
    472,624.20x = 122,649,666,368.76
  5. Step 5: Solve for x
    x = 122,649,666,368.76/472,624.20
  6. Step 6: Final answer
    x = 259,507.80

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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.