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Finding the Fourth Proportional to 402,629.70, 604,017.45 and 202,446.30

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Solution

The fourth proportional to 402,629.70, 604,017.45 and 202,446.30 is: 303,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,629.70 : 604,017.45 = 202,446.30 : x
  2. Step 2: Convert to fraction form
    402,629.70/604,017.45 = 202,446.30/x
  3. Step 3: Cross multiply
    402,629.70x = 604,017.45 × 202,446.30
  4. Step 4: Simplify right side
    402,629.70x = 122,281,097,887.94
  5. Step 5: Solve for x
    x = 122,281,097,887.94/402,629.70
  6. Step 6: Final answer
    x = 303,706.10

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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.