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Finding the Fourth Proportional to 518,114.70, 777,276.86 and 218,595.96

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Solution

The fourth proportional to 518,114.70, 777,276.86 and 218,595.96 is: 327,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,114.70 : 777,276.86 = 218,595.96 : x
  2. Step 2: Convert to fraction form
    518,114.70/777,276.86 = 218,595.96/x
  3. Step 3: Cross multiply
    518,114.70x = 777,276.86 × 218,595.96
  4. Step 4: Simplify right side
    518,114.70x = 169,909,580,304.51
  5. Step 5: Solve for x
    x = 169,909,580,304.51/518,114.70
  6. Step 6: Final answer
    x = 327,938.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.