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Finding the Fourth Proportional to 606,429.80, 909,644.70 and 576,905.30

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Solution

The fourth proportional to 606,429.80, 909,644.70 and 576,905.30 is: 865,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,429.80 : 909,644.70 = 576,905.30 : x
  2. Step 2: Convert to fraction form
    606,429.80/909,644.70 = 576,905.30/x
  3. Step 3: Cross multiply
    606,429.80x = 909,644.70 × 576,905.30
  4. Step 4: Simplify right side
    606,429.80x = 524,778,848,546.91
  5. Step 5: Solve for x
    x = 524,778,848,546.91/606,429.80
  6. Step 6: Final answer
    x = 865,357.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.