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Finding the Fourth Proportional to 713,901.25, 985,183.73 and 412,095.25

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Solution

The fourth proportional to 713,901.25, 985,183.73 and 412,095.25 is: 568,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,901.25 : 985,183.73 = 412,095.25 : x
  2. Step 2: Convert to fraction form
    713,901.25/985,183.73 = 412,095.25/x
  3. Step 3: Cross multiply
    713,901.25x = 985,183.73 × 412,095.25
  4. Step 4: Simplify right side
    713,901.25x = 405,989,535,510.28
  5. Step 5: Solve for x
    x = 405,989,535,510.28/713,901.25
  6. Step 6: Final answer
    x = 568,691.45

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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.