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Finding the Fourth Proportional to 424,852.20, 637,131.42 and 188,360.28

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Solution

The fourth proportional to 424,852.20, 637,131.42 and 188,360.28 is: 282,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,852.20 : 637,131.42 = 188,360.28 : x
  2. Step 2: Convert to fraction form
    424,852.20/637,131.42 = 188,360.28/x
  3. Step 3: Cross multiply
    424,852.20x = 637,131.42 × 188,360.28
  4. Step 4: Simplify right side
    424,852.20x = 120,010,252,668.00
  5. Step 5: Solve for x
    x = 120,010,252,668.00/424,852.20
  6. Step 6: Final answer
    x = 282,475.30

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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.