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Finding the Fourth Proportional to 475,556.13, 656,262.69 and 260,699.79

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Solution

The fourth proportional to 475,556.13, 656,262.69 and 260,699.79 is: 359,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,556.13 : 656,262.69 = 260,699.79 : x
  2. Step 2: Convert to fraction form
    475,556.13/656,262.69 = 260,699.79/x
  3. Step 3: Cross multiply
    475,556.13x = 656,262.69 × 260,699.79
  4. Step 4: Simplify right side
    475,556.13x = 171,087,545,467.84
  5. Step 5: Solve for x
    x = 171,087,545,467.84/475,556.13
  6. Step 6: Final answer
    x = 359,763.10

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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.