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Finding the Fourth Proportional to 303,477.90, 455,216.85 and 146,013.90

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Solution

The fourth proportional to 303,477.90, 455,216.85 and 146,013.90 is: 219,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,477.90 : 455,216.85 = 146,013.90 : x
  2. Step 2: Convert to fraction form
    303,477.90/455,216.85 = 146,013.90/x
  3. Step 3: Cross multiply
    303,477.90x = 455,216.85 × 146,013.90
  4. Step 4: Simplify right side
    303,477.90x = 66,467,987,614.22
  5. Step 5: Solve for x
    x = 66,467,987,614.22/303,477.90
  6. Step 6: Final answer
    x = 219,020.85

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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.