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Finding the Fourth Proportional to 484,507.56, 668,628.20 and 269,656.68

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Solution

The fourth proportional to 484,507.56, 668,628.20 and 269,656.68 is: 372,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,507.56 : 668,628.20 = 269,656.68 : x
  2. Step 2: Convert to fraction form
    484,507.56/668,628.20 = 269,656.68/x
  3. Step 3: Cross multiply
    484,507.56x = 668,628.20 × 269,656.68
  4. Step 4: Simplify right side
    484,507.56x = 180,300,060,566.38
  5. Step 5: Solve for x
    x = 180,300,060,566.38/484,507.56
  6. Step 6: Final answer
    x = 372,130.54

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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.