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Finding the Fourth Proportional to 475,947.48, 656,808.52 and 261,089.28

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Solution

The fourth proportional to 475,947.48, 656,808.52 and 261,089.28 is: 360,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,947.48 : 656,808.52 = 261,089.28 : x
  2. Step 2: Convert to fraction form
    475,947.48/656,808.52 = 261,089.28/x
  3. Step 3: Cross multiply
    475,947.48x = 656,808.52 × 261,089.28
  4. Step 4: Simplify right side
    475,947.48x = 171,485,663,584.67
  5. Step 5: Solve for x
    x = 171,485,663,584.67/475,947.48
  6. Step 6: Final answer
    x = 360,303.75

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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.