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Finding the Fourth Proportional to 633,913.14, 874,760.49 and 347,412.90

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Solution

The fourth proportional to 633,913.14, 874,760.49 and 347,412.90 is: 479,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,913.14 : 874,760.49 = 347,412.90 : x
  2. Step 2: Convert to fraction form
    633,913.14/874,760.49 = 347,412.90/x
  3. Step 3: Cross multiply
    633,913.14x = 874,760.49 × 347,412.90
  4. Step 4: Simplify right side
    633,913.14x = 303,903,078,636.32
  5. Step 5: Solve for x
    x = 303,903,078,636.32/633,913.14
  6. Step 6: Final answer
    x = 479,408.08

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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.