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Finding the Fourth Proportional to 303,909.12, 455,883.06 and 116,920.62

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Solution

The fourth proportional to 303,909.12, 455,883.06 and 116,920.62 is: 175,388.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,909.12 : 455,883.06 = 116,920.62 : x
  2. Step 2: Convert to fraction form
    303,909.12/455,883.06 = 116,920.62/x
  3. Step 3: Cross multiply
    303,909.12x = 455,883.06 × 116,920.62
  4. Step 4: Simplify right side
    303,909.12x = 53,302,130,022.70
  5. Step 5: Solve for x
    x = 53,302,130,022.70/303,909.12
  6. Step 6: Final answer
    x = 175,388.39

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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.