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Finding the Fourth Proportional to 483,609.90, 677,753.70 and 483,609.90

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Solution

The fourth proportional to 483,609.90, 677,753.70 and 483,609.90 is: 677,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,609.90 : 677,753.70 = 483,609.90 : x
  2. Step 2: Convert to fraction form
    483,609.90/677,753.70 = 483,609.90/x
  3. Step 3: Cross multiply
    483,609.90x = 677,753.70 × 483,609.90
  4. Step 4: Simplify right side
    483,609.90x = 327,768,399,081.63
  5. Step 5: Solve for x
    x = 327,768,399,081.63/483,609.90
  6. Step 6: Final answer
    x = 677,753.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.