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Finding the Fourth Proportional to 293,611.70, 411,989.50 and 293,611.70

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Solution

The fourth proportional to 293,611.70, 411,989.50 and 293,611.70 is: 411,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,611.70 : 411,989.50 = 293,611.70 : x
  2. Step 2: Convert to fraction form
    293,611.70/411,989.50 = 293,611.70/x
  3. Step 3: Cross multiply
    293,611.70x = 411,989.50 × 293,611.70
  4. Step 4: Simplify right side
    293,611.70x = 120,964,937,477.15
  5. Step 5: Solve for x
    x = 120,964,937,477.15/293,611.70
  6. Step 6: Final answer
    x = 411,989.50

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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.