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Finding the Fourth Proportional to 293,081.40, 439,622.10 and 93,400.20

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Solution

The fourth proportional to 293,081.40, 439,622.10 and 93,400.20 is: 140,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,081.40 : 439,622.10 = 93,400.20 : x
  2. Step 2: Convert to fraction form
    293,081.40/439,622.10 = 93,400.20/x
  3. Step 3: Cross multiply
    293,081.40x = 439,622.10 × 93,400.20
  4. Step 4: Simplify right side
    293,081.40x = 41,060,792,064.42
  5. Step 5: Solve for x
    x = 41,060,792,064.42/293,081.40
  6. Step 6: Final answer
    x = 140,100.30

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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.