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Finding the Fourth Proportional to 343,673.60, 474,257.11 and 190,718.47

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Solution

The fourth proportional to 343,673.60, 474,257.11 and 190,718.47 is: 263,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,673.60 : 474,257.11 = 190,718.47 : x
  2. Step 2: Convert to fraction form
    343,673.60/474,257.11 = 190,718.47/x
  3. Step 3: Cross multiply
    343,673.60x = 474,257.11 × 190,718.47
  4. Step 4: Simplify right side
    343,673.60x = 90,449,590,405.82
  5. Step 5: Solve for x
    x = 90,449,590,405.82/343,673.60
  6. Step 6: Final answer
    x = 263,184.58

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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.