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Finding the Fourth Proportional to 626,205.16, 864,163.44 and 339,725.17

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Solution

The fourth proportional to 626,205.16, 864,163.44 and 339,725.17 is: 468,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,205.16 : 864,163.44 = 339,725.17 : x
  2. Step 2: Convert to fraction form
    626,205.16/864,163.44 = 339,725.17/x
  3. Step 3: Cross multiply
    626,205.16x = 864,163.44 × 339,725.17
  4. Step 4: Simplify right side
    626,205.16x = 293,578,071,561.79
  5. Step 5: Solve for x
    x = 293,578,071,561.79/626,205.16
  6. Step 6: Final answer
    x = 468,820.91

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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.