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Finding the Fourth Proportional to 486,629.99, 666,671.90 and 468,435.97

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Solution

The fourth proportional to 486,629.99, 666,671.90 and 468,435.97 is: 641,746.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,629.99 : 666,671.90 = 468,435.97 : x
  2. Step 2: Convert to fraction form
    486,629.99/666,671.90 = 468,435.97/x
  3. Step 3: Cross multiply
    486,629.99x = 666,671.90 × 468,435.97
  4. Step 4: Simplify right side
    486,629.99x = 312,293,095,896.02
  5. Step 5: Solve for x
    x = 312,293,095,896.02/486,629.99
  6. Step 6: Final answer
    x = 641,746.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.