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Finding the Fourth Proportional to 604,345.20, 906,517.80 and 446,881.20

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Solution

The fourth proportional to 604,345.20, 906,517.80 and 446,881.20 is: 670,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,345.20 : 906,517.80 = 446,881.20 : x
  2. Step 2: Convert to fraction form
    604,345.20/906,517.80 = 446,881.20/x
  3. Step 3: Cross multiply
    604,345.20x = 906,517.80 × 446,881.20
  4. Step 4: Simplify right side
    604,345.20x = 405,105,762,285.36
  5. Step 5: Solve for x
    x = 405,105,762,285.36/604,345.20
  6. Step 6: Final answer
    x = 670,321.80

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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.