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Finding the Fourth Proportional to 415,196.02, 622,990.59 and 247,048.66

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Solution

The fourth proportional to 415,196.02, 622,990.59 and 247,048.66 is: 370,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,196.02 : 622,990.59 = 247,048.66 : x
  2. Step 2: Convert to fraction form
    415,196.02/622,990.59 = 247,048.66/x
  3. Step 3: Cross multiply
    415,196.02x = 622,990.59 × 247,048.66
  4. Step 4: Simplify right side
    415,196.02x = 153,908,990,452.11
  5. Step 5: Solve for x
    x = 153,908,990,452.11/415,196.02
  6. Step 6: Final answer
    x = 370,689.95

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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.