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Finding the Fourth Proportional to 375,734.23, 518,457.88 and 228,483.97

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Solution

The fourth proportional to 375,734.23, 518,457.88 and 228,483.97 is: 315,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,734.23 : 518,457.88 = 228,483.97 : x
  2. Step 2: Convert to fraction form
    375,734.23/518,457.88 = 228,483.97/x
  3. Step 3: Cross multiply
    375,734.23x = 518,457.88 × 228,483.97
  4. Step 4: Simplify right side
    375,734.23x = 118,459,314,128.97
  5. Step 5: Solve for x
    x = 118,459,314,128.97/375,734.23
  6. Step 6: Final answer
    x = 315,274.21

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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.