Home / 668,623.20-922,475.61-381,940.32

Finding the Fourth Proportional to 668,623.20, 922,475.61 and 381,940.32

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Solution

The fourth proportional to 668,623.20, 922,475.61 and 381,940.32 is: 526,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,623.20 : 922,475.61 = 381,940.32 : x
  2. Step 2: Convert to fraction form
    668,623.20/922,475.61 = 381,940.32/x
  3. Step 3: Cross multiply
    668,623.20x = 922,475.61 × 381,940.32
  4. Step 4: Simplify right side
    668,623.20x = 352,330,629,675.60
  5. Step 5: Solve for x
    x = 352,330,629,675.60/668,623.20
  6. Step 6: Final answer
    x = 526,949.45

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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.