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Finding the Fourth Proportional to 428,095.72, 590,548.14 and 264,700.02

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Solution

The fourth proportional to 428,095.72, 590,548.14 and 264,700.02 is: 365,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,095.72 : 590,548.14 = 264,700.02 : x
  2. Step 2: Convert to fraction form
    428,095.72/590,548.14 = 264,700.02/x
  3. Step 3: Cross multiply
    428,095.72x = 590,548.14 × 264,700.02
  4. Step 4: Simplify right side
    428,095.72x = 156,318,104,468.96
  5. Step 5: Solve for x
    x = 156,318,104,468.96/428,095.72
  6. Step 6: Final answer
    x = 365,147.55

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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.