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Finding the Fourth Proportional to 574,099.20, 792,255.36 and 319,444.32

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Solution

The fourth proportional to 574,099.20, 792,255.36 and 319,444.32 is: 440,832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,099.20 : 792,255.36 = 319,444.32 : x
  2. Step 2: Convert to fraction form
    574,099.20/792,255.36 = 319,444.32/x
  3. Step 3: Cross multiply
    574,099.20x = 792,255.36 × 319,444.32
  4. Step 4: Simplify right side
    574,099.20x = 253,081,474,741.56
  5. Step 5: Solve for x
    x = 253,081,474,741.56/574,099.20
  6. Step 6: Final answer
    x = 440,832.31

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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.