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Finding the Fourth Proportional to 737,763.20, 1,106,644.80 and 513,814.40

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Solution

The fourth proportional to 737,763.20, 1,106,644.80 and 513,814.40 is: 770,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,763.20 : 1,106,644.80 = 513,814.40 : x
  2. Step 2: Convert to fraction form
    737,763.20/1,106,644.80 = 513,814.40/x
  3. Step 3: Cross multiply
    737,763.20x = 1,106,644.80 × 513,814.40
  4. Step 4: Simplify right side
    737,763.20x = 568,610,033,925.12
  5. Step 5: Solve for x
    x = 568,610,033,925.12/737,763.20
  6. Step 6: Final answer
    x = 770,721.60

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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.