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Finding the Fourth Proportional to 475,424.28, 656,090.64 and 260,559.72

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Solution

The fourth proportional to 475,424.28, 656,090.64 and 260,559.72 is: 359,575.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,424.28 : 656,090.64 = 260,559.72 : x
  2. Step 2: Convert to fraction form
    475,424.28/656,090.64 = 260,559.72/x
  3. Step 3: Cross multiply
    475,424.28x = 656,090.64 × 260,559.72
  4. Step 4: Simplify right side
    475,424.28x = 170,950,793,453.02
  5. Step 5: Solve for x
    x = 170,950,793,453.02/475,424.28
  6. Step 6: Final answer
    x = 359,575.23

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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.