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Finding the Fourth Proportional to 445,893.47, 668,555.73 and 293,915.10

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Solution

The fourth proportional to 445,893.47, 668,555.73 and 293,915.10 is: 440,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,893.47 : 668,555.73 = 293,915.10 : x
  2. Step 2: Convert to fraction form
    445,893.47/668,555.73 = 293,915.10/x
  3. Step 3: Cross multiply
    445,893.47x = 668,555.73 × 293,915.10
  4. Step 4: Simplify right side
    445,893.47x = 196,498,621,731.44
  5. Step 5: Solve for x
    x = 196,498,621,731.44/445,893.47
  6. Step 6: Final answer
    x = 440,685.13

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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.