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Finding the Fourth Proportional to 322,438.20, 483,661.35 and 97,800.90

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Solution

The fourth proportional to 322,438.20, 483,661.35 and 97,800.90 is: 146,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,438.20 : 483,661.35 = 97,800.90 : x
  2. Step 2: Convert to fraction form
    322,438.20/483,661.35 = 97,800.90/x
  3. Step 3: Cross multiply
    322,438.20x = 483,661.35 × 97,800.90
  4. Step 4: Simplify right side
    322,438.20x = 47,302,515,325.22
  5. Step 5: Solve for x
    x = 47,302,515,325.22/322,438.20
  6. Step 6: Final answer
    x = 146,702.58

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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.