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Finding the Fourth Proportional to 647,672.40, 969,953.40 and 523,256.40

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Solution

The fourth proportional to 647,672.40, 969,953.40 and 523,256.40 is: 783,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,672.40 : 969,953.40 = 523,256.40 : x
  2. Step 2: Convert to fraction form
    647,672.40/969,953.40 = 523,256.40/x
  3. Step 3: Cross multiply
    647,672.40x = 969,953.40 × 523,256.40
  4. Step 4: Simplify right side
    647,672.40x = 507,534,324,251.76
  5. Step 5: Solve for x
    x = 507,534,324,251.76/647,672.40
  6. Step 6: Final answer
    x = 783,628.15

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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.