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Finding the Fourth Proportional to 504,652.05, 696,400.28 and 286,889.27

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Solution

The fourth proportional to 504,652.05, 696,400.28 and 286,889.27 is: 395,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,652.05 : 696,400.28 = 286,889.27 : x
  2. Step 2: Convert to fraction form
    504,652.05/696,400.28 = 286,889.27/x
  3. Step 3: Cross multiply
    504,652.05x = 696,400.28 × 286,889.27
  4. Step 4: Simplify right side
    504,652.05x = 199,789,763,040.55
  5. Step 5: Solve for x
    x = 199,789,763,040.55/504,652.05
  6. Step 6: Final answer
    x = 395,896.07

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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.