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Finding the Fourth Proportional to 633,873.40, 874,740.27 and 347,392.81

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Solution

The fourth proportional to 633,873.40, 874,740.27 and 347,392.81 is: 479,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,873.40 : 874,740.27 = 347,392.81 : x
  2. Step 2: Convert to fraction form
    633,873.40/874,740.27 = 347,392.81/x
  3. Step 3: Cross multiply
    633,873.40x = 874,740.27 × 347,392.81
  4. Step 4: Simplify right side
    633,873.40x = 303,878,480,415.46
  5. Step 5: Solve for x
    x = 303,878,480,415.46/633,873.40
  6. Step 6: Final answer
    x = 479,399.33

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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.