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Finding the Fourth Proportional to 475,760.56, 656,558.60 and 260,887.81

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Solution

The fourth proportional to 475,760.56, 656,558.60 and 260,887.81 is: 360,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,760.56 : 656,558.60 = 260,887.81 : x
  2. Step 2: Convert to fraction form
    475,760.56/656,558.60 = 260,887.81/x
  3. Step 3: Cross multiply
    475,760.56x = 656,558.60 × 260,887.81
  4. Step 4: Simplify right side
    475,760.56x = 171,288,133,986.23
  5. Step 5: Solve for x
    x = 171,288,133,986.23/475,760.56
  6. Step 6: Final answer
    x = 360,030.13

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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.