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Finding the Fourth Proportional to 633,565.35, 874,342.05 and 347,085.36

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Solution

The fourth proportional to 633,565.35, 874,342.05 and 347,085.36 is: 478,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,565.35 : 874,342.05 = 347,085.36 : x
  2. Step 2: Convert to fraction form
    633,565.35/874,342.05 = 347,085.36/x
  3. Step 3: Cross multiply
    633,565.35x = 874,342.05 × 347,085.36
  4. Step 4: Simplify right side
    633,565.35x = 303,471,325,187.39
  5. Step 5: Solve for x
    x = 303,471,325,187.39/633,565.35
  6. Step 6: Final answer
    x = 478,989.78

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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.