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Finding the Fourth Proportional to 452,928.64, 625,051.20 and 251,720.32

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Solution

The fourth proportional to 452,928.64, 625,051.20 and 251,720.32 is: 347,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,928.64 : 625,051.20 = 251,720.32 : x
  2. Step 2: Convert to fraction form
    452,928.64/625,051.20 = 251,720.32/x
  3. Step 3: Cross multiply
    452,928.64x = 625,051.20 × 251,720.32
  4. Step 4: Simplify right side
    452,928.64x = 157,338,088,080.38
  5. Step 5: Solve for x
    x = 157,338,088,080.38/452,928.64
  6. Step 6: Final answer
    x = 347,379.42

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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.