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Finding the Fourth Proportional to 563,980.80, 845,766.40 and 283,404.80

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Solution

The fourth proportional to 563,980.80, 845,766.40 and 283,404.80 is: 425,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,980.80 : 845,766.40 = 283,404.80 : x
  2. Step 2: Convert to fraction form
    563,980.80/845,766.40 = 283,404.80/x
  3. Step 3: Cross multiply
    563,980.80x = 845,766.40 × 283,404.80
  4. Step 4: Simplify right side
    563,980.80x = 239,694,257,438.72
  5. Step 5: Solve for x
    x = 239,694,257,438.72/563,980.80
  6. Step 6: Final answer
    x = 425,004.29

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Double scale
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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.