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Finding the Fourth Proportional to 303,546.90, 455,320.35 and 146,082.90

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Solution

The fourth proportional to 303,546.90, 455,320.35 and 146,082.90 is: 219,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,546.90 : 455,320.35 = 146,082.90 : x
  2. Step 2: Convert to fraction form
    303,546.90/455,320.35 = 146,082.90/x
  3. Step 3: Cross multiply
    303,546.90x = 455,320.35 × 146,082.90
  4. Step 4: Simplify right side
    303,546.90x = 66,514,517,157.02
  5. Step 5: Solve for x
    x = 66,514,517,157.02/303,546.90
  6. Step 6: Final answer
    x = 219,124.35

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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.