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Finding the Fourth Proportional to 484,998.85, 669,298.59 and 281,167.93

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Solution

The fourth proportional to 484,998.85, 669,298.59 and 281,167.93 is: 388,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,998.85 : 669,298.59 = 281,167.93 : x
  2. Step 2: Convert to fraction form
    484,998.85/669,298.59 = 281,167.93/x
  3. Step 3: Cross multiply
    484,998.85x = 669,298.59 × 281,167.93
  4. Step 4: Simplify right side
    484,998.85x = 188,185,299,102.22
  5. Step 5: Solve for x
    x = 188,185,299,102.22/484,998.85
  6. Step 6: Final answer
    x = 388,011.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.