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Finding the Fourth Proportional to 323,347.20, 484,790.40 and 123,590.40

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Solution

The fourth proportional to 323,347.20, 484,790.40 and 123,590.40 is: 185,297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,347.20 : 484,790.40 = 123,590.40 : x
  2. Step 2: Convert to fraction form
    323,347.20/484,790.40 = 123,590.40/x
  3. Step 3: Cross multiply
    323,347.20x = 484,790.40 × 123,590.40
  4. Step 4: Simplify right side
    323,347.20x = 59,915,439,452.16
  5. Step 5: Solve for x
    x = 59,915,439,452.16/323,347.20
  6. Step 6: Final answer
    x = 185,297.54

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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.