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Finding the Fourth Proportional to 873,232,168.60, 1,309,848,252.90 and 578,601,278.20

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Solution

The fourth proportional to 873,232,168.60, 1,309,848,252.90 and 578,601,278.20 is: 867,901,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,232,168.60 : 1,309,848,252.90 = 578,601,278.20 : x
  2. Step 2: Convert to fraction form
    873,232,168.60/1,309,848,252.90 = 578,601,278.20/x
  3. Step 3: Cross multiply
    873,232,168.60x = 1,309,848,252.90 × 578,601,278.20
  4. Step 4: Simplify right side
    873,232,168.60x = 757,879,873,375,976,960
  5. Step 5: Solve for x
    x = 757,879,873,375,976,960/873,232,168.60
  6. Step 6: Final answer
    x = 867,901,917.30

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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.