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Finding the Fourth Proportional to 404,693.04, 606,986.28 and 124,186.80

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Solution

The fourth proportional to 404,693.04, 606,986.28 and 124,186.80 is: 186,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,693.04 : 606,986.28 = 124,186.80 : x
  2. Step 2: Convert to fraction form
    404,693.04/606,986.28 = 124,186.80/x
  3. Step 3: Cross multiply
    404,693.04x = 606,986.28 × 124,186.80
  4. Step 4: Simplify right side
    404,693.04x = 75,379,683,757.10
  5. Step 5: Solve for x
    x = 75,379,683,757.10/404,693.04
  6. Step 6: Final answer
    x = 186,263.85

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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.