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Finding the Fourth Proportional to 299,437.34, 448,782.20 and 149,720.44

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Solution

The fourth proportional to 299,437.34, 448,782.20 and 149,720.44 is: 224,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,437.34 : 448,782.20 = 149,720.44 : x
  2. Step 2: Convert to fraction form
    299,437.34/448,782.20 = 149,720.44/x
  3. Step 3: Cross multiply
    299,437.34x = 448,782.20 × 149,720.44
  4. Step 4: Simplify right side
    299,437.34x = 67,191,866,577.61
  5. Step 5: Solve for x
    x = 67,191,866,577.61/299,437.34
  6. Step 6: Final answer
    x = 224,393.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.