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Finding the Fourth Proportional to 519,969.39, 779,799.11 and 220,445.16

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Solution

The fourth proportional to 519,969.39, 779,799.11 and 220,445.16 is: 330,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,969.39 : 779,799.11 = 220,445.16 : x
  2. Step 2: Convert to fraction form
    519,969.39/779,799.11 = 220,445.16/x
  3. Step 3: Cross multiply
    519,969.39x = 779,799.11 × 220,445.16
  4. Step 4: Simplify right side
    519,969.39x = 171,902,938,469.58
  5. Step 5: Solve for x
    x = 171,902,938,469.58/519,969.39
  6. Step 6: Final answer
    x = 330,602.03

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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.