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Finding the Fourth Proportional to 542,309.37, 747,998.32 and 358,334.85

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Solution

The fourth proportional to 542,309.37, 747,998.32 and 358,334.85 is: 494,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,309.37 : 747,998.32 = 358,334.85 : x
  2. Step 2: Convert to fraction form
    542,309.37/747,998.32 = 358,334.85/x
  3. Step 3: Cross multiply
    542,309.37x = 747,998.32 × 358,334.85
  4. Step 4: Simplify right side
    542,309.37x = 268,033,865,797.45
  5. Step 5: Solve for x
    x = 268,033,865,797.45/542,309.37
  6. Step 6: Final answer
    x = 494,245.32

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Double scale
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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.