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Finding the Fourth Proportional to 256,329.66, 384,160.06 and 185,490.91

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Solution

The fourth proportional to 256,329.66, 384,160.06 and 185,490.91 is: 277,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,329.66 : 384,160.06 = 185,490.91 : x
  2. Step 2: Convert to fraction form
    256,329.66/384,160.06 = 185,490.91/x
  3. Step 3: Cross multiply
    256,329.66x = 384,160.06 × 185,490.91
  4. Step 4: Simplify right side
    256,329.66x = 71,258,196,266.80
  5. Step 5: Solve for x
    x = 71,258,196,266.80/256,329.66
  6. Step 6: Final answer
    x = 277,994.35

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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.