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Finding the Fourth Proportional to 304,678.60, 457,111.26 and 136,340.60

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Solution

The fourth proportional to 304,678.60, 457,111.26 and 136,340.60 is: 204,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,678.60 : 457,111.26 = 136,340.60 : x
  2. Step 2: Convert to fraction form
    304,678.60/457,111.26 = 136,340.60/x
  3. Step 3: Cross multiply
    304,678.60x = 457,111.26 × 136,340.60
  4. Step 4: Simplify right side
    304,678.60x = 62,322,823,455.16
  5. Step 5: Solve for x
    x = 62,322,823,455.16/304,678.60
  6. Step 6: Final answer
    x = 204,552.68

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1.5x scale

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.