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Finding the Fourth Proportional to 331,624.81, 457,654.53 and 188,409.16

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Solution

The fourth proportional to 331,624.81, 457,654.53 and 188,409.16 is: 260,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,624.81 : 457,654.53 = 188,409.16 : x
  2. Step 2: Convert to fraction form
    331,624.81/457,654.53 = 188,409.16/x
  3. Step 3: Cross multiply
    331,624.81x = 457,654.53 × 188,409.16
  4. Step 4: Simplify right side
    331,624.81x = 86,226,305,567.49
  5. Step 5: Solve for x
    x = 86,226,305,567.49/331,624.81
  6. Step 6: Final answer
    x = 260,011.62

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1.5x scale

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.