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Finding the Fourth Proportional to 255,886.40, 384,175.20 and 162,574.40

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Solution

The fourth proportional to 255,886.40, 384,175.20 and 162,574.40 is: 244,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,886.40 : 384,175.20 = 162,574.40 : x
  2. Step 2: Convert to fraction form
    255,886.40/384,175.20 = 162,574.40/x
  3. Step 3: Cross multiply
    255,886.40x = 384,175.20 × 162,574.40
  4. Step 4: Simplify right side
    255,886.40x = 62,457,052,634.88
  5. Step 5: Solve for x
    x = 62,457,052,634.88/255,886.40
  6. Step 6: Final answer
    x = 244,081.17

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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.