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Finding the Fourth Proportional to 445,820.10, 668,730.15 and 293,604.90

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Solution

The fourth proportional to 445,820.10, 668,730.15 and 293,604.90 is: 440,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,820.10 : 668,730.15 = 293,604.90 : x
  2. Step 2: Convert to fraction form
    445,820.10/668,730.15 = 293,604.90/x
  3. Step 3: Cross multiply
    445,820.10x = 668,730.15 × 293,604.90
  4. Step 4: Simplify right side
    445,820.10x = 196,342,448,817.74
  5. Step 5: Solve for x
    x = 196,342,448,817.74/445,820.10
  6. Step 6: Final answer
    x = 440,407.35

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Similar ratio
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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.