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Finding the Fourth Proportional to 286,843.20, 429,487.20 and 224,635.20

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Solution

The fourth proportional to 286,843.20, 429,487.20 and 224,635.20 is: 336,343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,843.20 : 429,487.20 = 224,635.20 : x
  2. Step 2: Convert to fraction form
    286,843.20/429,487.20 = 224,635.20/x
  3. Step 3: Cross multiply
    286,843.20x = 429,487.20 × 224,635.20
  4. Step 4: Simplify right side
    286,843.20x = 96,477,943,069.44
  5. Step 5: Solve for x
    x = 96,477,943,069.44/286,843.20
  6. Step 6: Final answer
    x = 336,343.84

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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.