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Finding the Fourth Proportional to 633,559.40, 874,309.38 and 347,097.32

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Solution

The fourth proportional to 633,559.40, 874,309.38 and 347,097.32 is: 478,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,559.40 : 874,309.38 = 347,097.32 : x
  2. Step 2: Convert to fraction form
    633,559.40/874,309.38 = 347,097.32/x
  3. Step 3: Cross multiply
    633,559.40x = 874,309.38 × 347,097.32
  4. Step 4: Simplify right side
    633,559.40x = 303,470,442,648.86
  5. Step 5: Solve for x
    x = 303,470,442,648.86/633,559.40
  6. Step 6: Final answer
    x = 478,992.88

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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.