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Finding the Fourth Proportional to 484,652.70, 668,832.47 and 269,807.28

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Solution

The fourth proportional to 484,652.70, 668,832.47 and 269,807.28 is: 372,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,652.70 : 668,832.47 = 269,807.28 : x
  2. Step 2: Convert to fraction form
    484,652.70/668,832.47 = 269,807.28/x
  3. Step 3: Cross multiply
    484,652.70x = 668,832.47 × 269,807.28
  4. Step 4: Simplify right side
    484,652.70x = 180,455,868,157.35
  5. Step 5: Solve for x
    x = 180,455,868,157.35/484,652.70
  6. Step 6: Final answer
    x = 372,340.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.