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Finding the Fourth Proportional to 553,075.70, 829,629.74 and 216,102.74

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Solution

The fourth proportional to 553,075.70, 829,629.74 and 216,102.74 is: 324,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,075.70 : 829,629.74 = 216,102.74 : x
  2. Step 2: Convert to fraction form
    553,075.70/829,629.74 = 216,102.74/x
  3. Step 3: Cross multiply
    553,075.70x = 829,629.74 × 216,102.74
  4. Step 4: Simplify right side
    553,075.70x = 179,285,256,391.60
  5. Step 5: Solve for x
    x = 179,285,256,391.60/553,075.70
  6. Step 6: Final answer
    x = 324,160.43

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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.