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Finding the Fourth Proportional to 3,059,605.80, 4,590,064.80 and 929,905.20

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Solution

The fourth proportional to 3,059,605.80, 4,590,064.80 and 929,905.20 is: 1,395,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059,605.80 : 4,590,064.80 = 929,905.20 : x
  2. Step 2: Convert to fraction form
    3,059,605.80/4,590,064.80 = 929,905.20/x
  3. Step 3: Cross multiply
    3,059,605.80x = 4,590,064.80 × 929,905.20
  4. Step 4: Simplify right side
    3,059,605.80x = 4,268,325,125,856.96
  5. Step 5: Solve for x
    x = 4,268,325,125,856.96/3,059,605.80
  6. Step 6: Final answer
    x = 1,395,057.21

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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.