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Finding the Fourth Proportional to 303,658.60, 455,487.90 and 116,674.60

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Solution

The fourth proportional to 303,658.60, 455,487.90 and 116,674.60 is: 175,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,658.60 : 455,487.90 = 116,674.60 : x
  2. Step 2: Convert to fraction form
    303,658.60/455,487.90 = 116,674.60/x
  3. Step 3: Cross multiply
    303,658.60x = 455,487.90 × 116,674.60
  4. Step 4: Simplify right side
    303,658.60x = 53,143,868,537.34
  5. Step 5: Solve for x
    x = 53,143,868,537.34/303,658.60
  6. Step 6: Final answer
    x = 175,011.90

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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.