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Finding the Fourth Proportional to 404,911.20, 607,075.20 and 227,472.60

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Solution

The fourth proportional to 404,911.20, 607,075.20 and 227,472.60 is: 341,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,911.20 : 607,075.20 = 227,472.60 : x
  2. Step 2: Convert to fraction form
    404,911.20/607,075.20 = 227,472.60/x
  3. Step 3: Cross multiply
    404,911.20x = 607,075.20 × 227,472.60
  4. Step 4: Simplify right side
    404,911.20x = 138,092,974,139.52
  5. Step 5: Solve for x
    x = 138,092,974,139.52/404,911.20
  6. Step 6: Final answer
    x = 341,045.08

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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.