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Finding the Fourth Proportional to 626,198.92, 864,154.81 and 339,718.93

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Solution

The fourth proportional to 626,198.92, 864,154.81 and 339,718.93 is: 468,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,198.92 : 864,154.81 = 339,718.93 : x
  2. Step 2: Convert to fraction form
    626,198.92/864,154.81 = 339,718.93/x
  3. Step 3: Cross multiply
    626,198.92x = 864,154.81 × 339,718.93
  4. Step 4: Simplify right side
    626,198.92x = 293,569,745,671.82
  5. Step 5: Solve for x
    x = 293,569,745,671.82/626,198.92
  6. Step 6: Final answer
    x = 468,812.29

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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.