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Finding the Fourth Proportional to 633,408.10, 874,117.35 and 361,470.58

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Solution

The fourth proportional to 633,408.10, 874,117.35 and 361,470.58 is: 498,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,408.10 : 874,117.35 = 361,470.58 : x
  2. Step 2: Convert to fraction form
    633,408.10/874,117.35 = 361,470.58/x
  3. Step 3: Cross multiply
    633,408.10x = 874,117.35 × 361,470.58
  4. Step 4: Simplify right side
    633,408.10x = 315,967,705,492.56
  5. Step 5: Solve for x
    x = 315,967,705,492.56/633,408.10
  6. Step 6: Final answer
    x = 498,837.49

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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.