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Finding the Fourth Proportional to 633,408.58, 874,120.83 and 357,744.32

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Solution

The fourth proportional to 633,408.58, 874,120.83 and 357,744.32 is: 493,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,408.58 : 874,120.83 = 357,744.32 : x
  2. Step 2: Convert to fraction form
    633,408.58/874,120.83 = 357,744.32/x
  3. Step 3: Cross multiply
    633,408.58x = 874,120.83 × 357,744.32
  4. Step 4: Simplify right side
    633,408.58x = 312,711,761,926.19
  5. Step 5: Solve for x
    x = 312,711,761,926.19/633,408.58
  6. Step 6: Final answer
    x = 493,696.76

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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.