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Finding the Fourth Proportional to 475,808.48, 656,634.60 and 260,956.28

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Solution

The fourth proportional to 475,808.48, 656,634.60 and 260,956.28 is: 360,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,808.48 : 656,634.60 = 260,956.28 : x
  2. Step 2: Convert to fraction form
    475,808.48/656,634.60 = 260,956.28/x
  3. Step 3: Cross multiply
    475,808.48x = 656,634.60 × 260,956.28
  4. Step 4: Simplify right side
    475,808.48x = 171,352,922,535.29
  5. Step 5: Solve for x
    x = 171,352,922,535.29/475,808.48
  6. Step 6: Final answer
    x = 360,130.03

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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.