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Finding the Fourth Proportional to 647,191.44, 892,707.30 and 429,395.40

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Solution

The fourth proportional to 647,191.44, 892,707.30 and 429,395.40 is: 592,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,191.44 : 892,707.30 = 429,395.40 : x
  2. Step 2: Convert to fraction form
    647,191.44/892,707.30 = 429,395.40/x
  3. Step 3: Cross multiply
    647,191.44x = 892,707.30 × 429,395.40
  4. Step 4: Simplify right side
    647,191.44x = 383,324,408,166.42
  5. Step 5: Solve for x
    x = 383,324,408,166.42/647,191.44
  6. Step 6: Final answer
    x = 592,289.06

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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.