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Finding the Fourth Proportional to 965,710.70, 1,449,084.45 and 404,801.90

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Solution

The fourth proportional to 965,710.70, 1,449,084.45 and 404,801.90 is: 607,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,710.70 : 1,449,084.45 = 404,801.90 : x
  2. Step 2: Convert to fraction form
    965,710.70/1,449,084.45 = 404,801.90/x
  3. Step 3: Cross multiply
    965,710.70x = 1,449,084.45 × 404,801.90
  4. Step 4: Simplify right side
    965,710.70x = 586,592,138,620.46
  5. Step 5: Solve for x
    x = 586,592,138,620.46/965,710.70
  6. Step 6: Final answer
    x = 607,420.15

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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.