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Finding the Fourth Proportional to 404,632.80, 607,605.30 and 272,100.60

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Solution

The fourth proportional to 404,632.80, 607,605.30 and 272,100.60 is: 408,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,632.80 : 607,605.30 = 272,100.60 : x
  2. Step 2: Convert to fraction form
    404,632.80/607,605.30 = 272,100.60/x
  3. Step 3: Cross multiply
    404,632.80x = 607,605.30 × 272,100.60
  4. Step 4: Simplify right side
    404,632.80x = 165,329,766,693.18
  5. Step 5: Solve for x
    x = 165,329,766,693.18/404,632.80
  6. Step 6: Final answer
    x = 408,592.10

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1.5x scale

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.