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Finding the Fourth Proportional to 343,776.02, 474,401.79 and 190,813.77

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Solution

The fourth proportional to 343,776.02, 474,401.79 and 190,813.77 is: 263,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,776.02 : 474,401.79 = 190,813.77 : x
  2. Step 2: Convert to fraction form
    343,776.02/474,401.79 = 190,813.77/x
  3. Step 3: Cross multiply
    343,776.02x = 474,401.79 × 190,813.77
  4. Step 4: Simplify right side
    343,776.02x = 90,522,394,044.65
  5. Step 5: Solve for x
    x = 90,522,394,044.65/343,776.02
  6. Step 6: Final answer
    x = 263,317.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.