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Finding the Fourth Proportional to 497,571.72, 686,106.34 and 336,146.48

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Solution

The fourth proportional to 497,571.72, 686,106.34 and 336,146.48 is: 463,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,571.72 : 686,106.34 = 336,146.48 : x
  2. Step 2: Convert to fraction form
    497,571.72/686,106.34 = 336,146.48/x
  3. Step 3: Cross multiply
    497,571.72x = 686,106.34 × 336,146.48
  4. Step 4: Simplify right side
    497,571.72x = 230,632,231,096.68
  5. Step 5: Solve for x
    x = 230,632,231,096.68/497,571.72
  6. Step 6: Final answer
    x = 463,515.55

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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.