Home / 989,441.92-1,365,433.32-536,736.16

Finding the Fourth Proportional to 989,441.92, 1,365,433.32 and 536,736.16

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Solution

The fourth proportional to 989,441.92, 1,365,433.32 and 536,736.16 is: 740,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,441.92 : 1,365,433.32 = 536,736.16 : x
  2. Step 2: Convert to fraction form
    989,441.92/1,365,433.32 = 536,736.16/x
  3. Step 3: Cross multiply
    989,441.92x = 1,365,433.32 × 536,736.16
  4. Step 4: Simplify right side
    989,441.92x = 732,877,436,912.85
  5. Step 5: Solve for x
    x = 732,877,436,912.85/989,441.92
  6. Step 6: Final answer
    x = 740,697.78

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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.