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Finding the Fourth Proportional to 664,829.37, 923,658.37 and 656,857.76

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Solution

The fourth proportional to 664,829.37, 923,658.37 and 656,857.76 is: 912,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,829.37 : 923,658.37 = 656,857.76 : x
  2. Step 2: Convert to fraction form
    664,829.37/923,658.37 = 656,857.76/x
  3. Step 3: Cross multiply
    664,829.37x = 923,658.37 × 656,857.76
  4. Step 4: Simplify right side
    664,829.37x = 606,712,161,663.02
  5. Step 5: Solve for x
    x = 606,712,161,663.02/664,829.37
  6. Step 6: Final answer
    x = 912,583.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.