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Finding the Fourth Proportional to 475,475.81, 656,161.16 and 260,620.07

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Solution

The fourth proportional to 475,475.81, 656,161.16 and 260,620.07 is: 359,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,475.81 : 656,161.16 = 260,620.07 : x
  2. Step 2: Convert to fraction form
    475,475.81/656,161.16 = 260,620.07/x
  3. Step 3: Cross multiply
    475,475.81x = 656,161.16 × 260,620.07
  4. Step 4: Simplify right side
    475,475.81x = 171,008,762,866.58
  5. Step 5: Solve for x
    x = 171,008,762,866.58/475,475.81
  6. Step 6: Final answer
    x = 359,658.18

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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.