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Finding the Fourth Proportional to 607,993.97, 839,083.46 and 353,328.75

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Solution

The fourth proportional to 607,993.97, 839,083.46 and 353,328.75 is: 487,623.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,993.97 : 839,083.46 = 353,328.75 : x
  2. Step 2: Convert to fraction form
    607,993.97/839,083.46 = 353,328.75/x
  3. Step 3: Cross multiply
    607,993.97x = 839,083.46 × 353,328.75
  4. Step 4: Simplify right side
    607,993.97x = 296,472,308,300.83
  5. Step 5: Solve for x
    x = 296,472,308,300.83/607,993.97
  6. Step 6: Final answer
    x = 487,623.77

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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.