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Finding the Fourth Proportional to 633,043.20, 874,007.52 and 564,943.68

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Solution

The fourth proportional to 633,043.20, 874,007.52 and 564,943.68 is: 779,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,043.20 : 874,007.52 = 564,943.68 : x
  2. Step 2: Convert to fraction form
    633,043.20/874,007.52 = 564,943.68/x
  3. Step 3: Cross multiply
    633,043.20x = 874,007.52 × 564,943.68
  4. Step 4: Simplify right side
    633,043.20x = 493,765,024,696.47
  5. Step 5: Solve for x
    x = 493,765,024,696.47/633,043.20
  6. Step 6: Final answer
    x = 779,986.30

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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.