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Finding the Fourth Proportional to 697,945.20, 962,919.11 and 456,369.18

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Solution

The fourth proportional to 697,945.20, 962,919.11 and 456,369.18 is: 629,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,945.20 : 962,919.11 = 456,369.18 : x
  2. Step 2: Convert to fraction form
    697,945.20/962,919.11 = 456,369.18/x
  3. Step 3: Cross multiply
    697,945.20x = 962,919.11 × 456,369.18
  4. Step 4: Simplify right side
    697,945.20x = 439,446,602,355.18
  5. Step 5: Solve for x
    x = 439,446,602,355.18/697,945.20
  6. Step 6: Final answer
    x = 629,629.09

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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.