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Finding the Fourth Proportional to 633,546.45, 874,315.85 and 347,066.46

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Solution

The fourth proportional to 633,546.45, 874,315.85 and 347,066.46 is: 478,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,546.45 : 874,315.85 = 347,066.46 : x
  2. Step 2: Convert to fraction form
    633,546.45/874,315.85 = 347,066.46/x
  3. Step 3: Cross multiply
    633,546.45x = 874,315.85 × 347,066.46
  4. Step 4: Simplify right side
    633,546.45x = 303,445,705,246.06
  5. Step 5: Solve for x
    x = 303,445,705,246.06/633,546.45
  6. Step 6: Final answer
    x = 478,963.63

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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.