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Finding the Fourth Proportional to 656,433, 979,497.17 and 616,308.84

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Solution

The fourth proportional to 656,433, 979,497.17 and 616,308.84 is: 919,625.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,433 : 979,497.17 = 616,308.84 : x
  2. Step 2: Convert to fraction form
    656,433/979,497.17 = 616,308.84/x
  3. Step 3: Cross multiply
    656,433x = 979,497.17 × 616,308.84
  4. Step 4: Simplify right side
    656,433x = 603,672,764,625.98
  5. Step 5: Solve for x
    x = 603,672,764,625.98/656,433
  6. Step 6: Final answer
    x = 919,625.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.