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Finding the Fourth Proportional to 407,832.80, 611,609.76 and 155,052.32

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Solution

The fourth proportional to 407,832.80, 611,609.76 and 155,052.32 is: 232,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,832.80 : 611,609.76 = 155,052.32 : x
  2. Step 2: Convert to fraction form
    407,832.80/611,609.76 = 155,052.32/x
  3. Step 3: Cross multiply
    407,832.80x = 611,609.76 × 155,052.32
  4. Step 4: Simplify right side
    407,832.80x = 94,831,512,222.64
  5. Step 5: Solve for x
    x = 94,831,512,222.64/407,832.80
  6. Step 6: Final answer
    x = 232,525.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.