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Finding the Fourth Proportional to 919,842.12, 1,268,661.90 and 597,656.88

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Solution

The fourth proportional to 919,842.12, 1,268,661.90 and 597,656.88 is: 824,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,842.12 : 1,268,661.90 = 597,656.88 : x
  2. Step 2: Convert to fraction form
    919,842.12/1,268,661.90 = 597,656.88/x
  3. Step 3: Cross multiply
    919,842.12x = 1,268,661.90 × 597,656.88
  4. Step 4: Simplify right side
    919,842.12x = 758,224,512,928.87
  5. Step 5: Solve for x
    x = 758,224,512,928.87/919,842.12
  6. Step 6: Final answer
    x = 824,298.54

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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.