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Finding the Fourth Proportional to 427,643.64, 590,144.80 and 236,667.52

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Solution

The fourth proportional to 427,643.64, 590,144.80 and 236,667.52 is: 326,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,643.64 : 590,144.80 = 236,667.52 : x
  2. Step 2: Convert to fraction form
    427,643.64/590,144.80 = 236,667.52/x
  3. Step 3: Cross multiply
    427,643.64x = 590,144.80 × 236,667.52
  4. Step 4: Simplify right side
    427,643.64x = 139,668,106,256.90
  5. Step 5: Solve for x
    x = 139,668,106,256.90/427,643.64
  6. Step 6: Final answer
    x = 326,599.28

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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.