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Finding the Fourth Proportional to 411,496.30, 616,041.60 and 293,398.30

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Solution

The fourth proportional to 411,496.30, 616,041.60 and 293,398.30 is: 439,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,496.30 : 616,041.60 = 293,398.30 : x
  2. Step 2: Convert to fraction form
    411,496.30/616,041.60 = 293,398.30/x
  3. Step 3: Cross multiply
    411,496.30x = 616,041.60 × 293,398.30
  4. Step 4: Simplify right side
    411,496.30x = 180,745,558,169.28
  5. Step 5: Solve for x
    x = 180,745,558,169.28/411,496.30
  6. Step 6: Final answer
    x = 439,239.81

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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.