Home / 668,314.56-922,189.04-381,853.20

Finding the Fourth Proportional to 668,314.56, 922,189.04 and 381,853.20

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Solution

The fourth proportional to 668,314.56, 922,189.04 and 381,853.20 is: 526,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,314.56 : 922,189.04 = 381,853.20 : x
  2. Step 2: Convert to fraction form
    668,314.56/922,189.04 = 381,853.20/x
  3. Step 3: Cross multiply
    668,314.56x = 922,189.04 × 381,853.20
  4. Step 4: Simplify right side
    668,314.56x = 352,140,835,928.93
  5. Step 5: Solve for x
    x = 352,140,835,928.93/668,314.56
  6. Step 6: Final answer
    x = 526,908.82

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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.