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Finding the Fourth Proportional to 651,410.80, 977,069.10 and 202,120.20

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Solution

The fourth proportional to 651,410.80, 977,069.10 and 202,120.20 is: 303,165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,410.80 : 977,069.10 = 202,120.20 : x
  2. Step 2: Convert to fraction form
    651,410.80/977,069.10 = 202,120.20/x
  3. Step 3: Cross multiply
    651,410.80x = 977,069.10 × 202,120.20
  4. Step 4: Simplify right side
    651,410.80x = 197,485,401,905.82
  5. Step 5: Solve for x
    x = 197,485,401,905.82/651,410.80
  6. Step 6: Final answer
    x = 303,165.69

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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.