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Finding the Fourth Proportional to 475,770.70, 656,530.95 and 260,866.18

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Solution

The fourth proportional to 475,770.70, 656,530.95 and 260,866.18 is: 359,977.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,770.70 : 656,530.95 = 260,866.18 : x
  2. Step 2: Convert to fraction form
    475,770.70/656,530.95 = 260,866.18/x
  3. Step 3: Cross multiply
    475,770.70x = 656,530.95 × 260,866.18
  4. Step 4: Simplify right side
    475,770.70x = 171,266,720,978.27
  5. Step 5: Solve for x
    x = 171,266,720,978.27/475,770.70
  6. Step 6: Final answer
    x = 359,977.44

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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.