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Finding the Fourth Proportional to 436,570.53, 654,855.95 and 196,403.91

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Solution

The fourth proportional to 436,570.53, 654,855.95 and 196,403.91 is: 294,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,570.53 : 654,855.95 = 196,403.91 : x
  2. Step 2: Convert to fraction form
    436,570.53/654,855.95 = 196,403.91/x
  3. Step 3: Cross multiply
    436,570.53x = 654,855.95 × 196,403.91
  4. Step 4: Simplify right side
    436,570.53x = 128,616,268,084.75
  5. Step 5: Solve for x
    x = 128,616,268,084.75/436,570.53
  6. Step 6: Final answer
    x = 294,605.93

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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.