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Finding the Fourth Proportional to 604,168.40, 906,252.60 and 405,102.80

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Solution

The fourth proportional to 604,168.40, 906,252.60 and 405,102.80 is: 607,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,168.40 : 906,252.60 = 405,102.80 : x
  2. Step 2: Convert to fraction form
    604,168.40/906,252.60 = 405,102.80/x
  3. Step 3: Cross multiply
    604,168.40x = 906,252.60 × 405,102.80
  4. Step 4: Simplify right side
    604,168.40x = 367,125,465,767.28
  5. Step 5: Solve for x
    x = 367,125,465,767.28/604,168.40
  6. Step 6: Final answer
    x = 607,654.20

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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.