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Finding the Fourth Proportional to 330,364.65, 455,794.80 and 185,149.23

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Solution

The fourth proportional to 330,364.65, 455,794.80 and 185,149.23 is: 255,445.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,364.65 : 455,794.80 = 185,149.23 : x
  2. Step 2: Convert to fraction form
    330,364.65/455,794.80 = 185,149.23/x
  3. Step 3: Cross multiply
    330,364.65x = 455,794.80 × 185,149.23
  4. Step 4: Simplify right side
    330,364.65x = 84,390,056,258.00
  5. Step 5: Solve for x
    x = 84,390,056,258.00/330,364.65
  6. Step 6: Final answer
    x = 255,445.18

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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.