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Finding the Fourth Proportional to 451,643.64, 623,287.62 and 260,656.44

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Solution

The fourth proportional to 451,643.64, 623,287.62 and 260,656.44 is: 359,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,643.64 : 623,287.62 = 260,656.44 : x
  2. Step 2: Convert to fraction form
    451,643.64/623,287.62 = 260,656.44/x
  3. Step 3: Cross multiply
    451,643.64x = 623,287.62 × 260,656.44
  4. Step 4: Simplify right side
    451,643.64x = 162,463,932,125.27
  5. Step 5: Solve for x
    x = 162,463,932,125.27/451,643.64
  6. Step 6: Final answer
    x = 359,717.08

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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.