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Finding the Fourth Proportional to 343,491.18, 474,074.57 and 190,578.57

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Solution

The fourth proportional to 343,491.18, 474,074.57 and 190,578.57 is: 263,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,491.18 : 474,074.57 = 190,578.57 : x
  2. Step 2: Convert to fraction form
    343,491.18/474,074.57 = 190,578.57/x
  3. Step 3: Cross multiply
    343,491.18x = 474,074.57 × 190,578.57
  4. Step 4: Simplify right side
    343,491.18x = 90,348,454,989.30
  5. Step 5: Solve for x
    x = 90,348,454,989.30/343,491.18
  6. Step 6: Final answer
    x = 263,029.91

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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.