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Finding the Fourth Proportional to 443,846.25, 612,509.99 and 242,642.25

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Solution

The fourth proportional to 443,846.25, 612,509.99 and 242,642.25 is: 334,847.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,846.25 : 612,509.99 = 242,642.25 : x
  2. Step 2: Convert to fraction form
    443,846.25/612,509.99 = 242,642.25/x
  3. Step 3: Cross multiply
    443,846.25x = 612,509.99 × 242,642.25
  4. Step 4: Simplify right side
    443,846.25x = 148,620,800,907.87
  5. Step 5: Solve for x
    x = 148,620,800,907.87/443,846.25
  6. Step 6: Final answer
    x = 334,847.49

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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.