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Finding the Fourth Proportional to 637,617.06, 879,911.73 and 351,136.26

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Solution

The fourth proportional to 637,617.06, 879,911.73 and 351,136.26 is: 484,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,617.06 : 879,911.73 = 351,136.26 : x
  2. Step 2: Convert to fraction form
    637,617.06/879,911.73 = 351,136.26/x
  3. Step 3: Cross multiply
    637,617.06x = 879,911.73 × 351,136.26
  4. Step 4: Simplify right side
    637,617.06x = 308,968,914,002.33
  5. Step 5: Solve for x
    x = 308,968,914,002.33/637,617.06
  6. Step 6: Final answer
    x = 484,568.14

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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.