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Finding the Fourth Proportional to 351,852.66, 485,554.91 and 190,706.40

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Solution

The fourth proportional to 351,852.66, 485,554.91 and 190,706.40 is: 263,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,852.66 : 485,554.91 = 190,706.40 : x
  2. Step 2: Convert to fraction form
    351,852.66/485,554.91 = 190,706.40/x
  3. Step 3: Cross multiply
    351,852.66x = 485,554.91 × 190,706.40
  4. Step 4: Simplify right side
    351,852.66x = 92,598,427,934.89
  5. Step 5: Solve for x
    x = 92,598,427,934.89/351,852.66
  6. Step 6: Final answer
    x = 263,173.87

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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.