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Finding the Fourth Proportional to 633,864.32, 874,734 and 347,395.04

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Solution

The fourth proportional to 633,864.32, 874,734 and 347,395.04 is: 479,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,864.32 : 874,734 = 347,395.04 : x
  2. Step 2: Convert to fraction form
    633,864.32/874,734 = 347,395.04/x
  3. Step 3: Cross multiply
    633,864.32x = 874,734 × 347,395.04
  4. Step 4: Simplify right side
    633,864.32x = 303,878,252,919.36
  5. Step 5: Solve for x
    x = 303,878,252,919.36/633,864.32
  6. Step 6: Final answer
    x = 479,405.83

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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.