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Finding the Fourth Proportional to 299,225.34, 412,870.46 and 190,372.91

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Solution

The fourth proportional to 299,225.34, 412,870.46 and 190,372.91 is: 262,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,225.34 : 412,870.46 = 190,372.91 : x
  2. Step 2: Convert to fraction form
    299,225.34/412,870.46 = 190,372.91/x
  3. Step 3: Cross multiply
    299,225.34x = 412,870.46 × 190,372.91
  4. Step 4: Simplify right side
    299,225.34x = 78,599,347,907.02
  5. Step 5: Solve for x
    x = 78,599,347,907.02/299,225.34
  6. Step 6: Final answer
    x = 262,676.11

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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.