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Finding the Fourth Proportional to 553,625.04, 830,786.67 and 317,429.04

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Solution

The fourth proportional to 553,625.04, 830,786.67 and 317,429.04 is: 476,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,625.04 : 830,786.67 = 317,429.04 : x
  2. Step 2: Convert to fraction form
    553,625.04/830,786.67 = 317,429.04/x
  3. Step 3: Cross multiply
    553,625.04x = 830,786.67 × 317,429.04
  4. Step 4: Simplify right side
    553,625.04x = 263,715,815,102.90
  5. Step 5: Solve for x
    x = 263,715,815,102.90/553,625.04
  6. Step 6: Final answer
    x = 476,343.73

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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.