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Finding the Fourth Proportional to 324,663.16, 484,617.24 and 286,314.42

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Solution

The fourth proportional to 324,663.16, 484,617.24 and 286,314.42 is: 427,374.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,663.16 : 484,617.24 = 286,314.42 : x
  2. Step 2: Convert to fraction form
    324,663.16/484,617.24 = 286,314.42/x
  3. Step 3: Cross multiply
    324,663.16x = 484,617.24 × 286,314.42
  4. Step 4: Simplify right side
    324,663.16x = 138,752,903,992.60
  5. Step 5: Solve for x
    x = 138,752,903,992.60/324,663.16
  6. Step 6: Final answer
    x = 427,374.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.