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Finding the Fourth Proportional to 874,509.62, 1,308,801.56 and 537,763.55

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Solution

The fourth proportional to 874,509.62, 1,308,801.56 and 537,763.55 is: 804,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,509.62 : 1,308,801.56 = 537,763.55 : x
  2. Step 2: Convert to fraction form
    874,509.62/1,308,801.56 = 537,763.55/x
  3. Step 3: Cross multiply
    874,509.62x = 1,308,801.56 × 537,763.55
  4. Step 4: Simplify right side
    874,509.62x = 703,825,763,918.31
  5. Step 5: Solve for x
    x = 703,825,763,918.31/874,509.62
  6. Step 6: Final answer
    x = 804,823.36

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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.