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Finding the Fourth Proportional to 604,116.80, 906,175.20 and 210,132.80

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Solution

The fourth proportional to 604,116.80, 906,175.20 and 210,132.80 is: 315,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,116.80 : 906,175.20 = 210,132.80 : x
  2. Step 2: Convert to fraction form
    604,116.80/906,175.20 = 210,132.80/x
  3. Step 3: Cross multiply
    604,116.80x = 906,175.20 × 210,132.80
  4. Step 4: Simplify right side
    604,116.80x = 190,417,132,066.56
  5. Step 5: Solve for x
    x = 190,417,132,066.56/604,116.80
  6. Step 6: Final answer
    x = 315,199.20

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Double scale
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Similar ratio
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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.