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Finding the Fourth Proportional to 479,912.10, 662,274.81 and 265,066.89

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Solution

The fourth proportional to 479,912.10, 662,274.81 and 265,066.89 is: 365,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,912.10 : 662,274.81 = 265,066.89 : x
  2. Step 2: Convert to fraction form
    479,912.10/662,274.81 = 265,066.89/x
  3. Step 3: Cross multiply
    479,912.10x = 662,274.81 × 265,066.89
  4. Step 4: Simplify right side
    479,912.10x = 175,547,124,212.04
  5. Step 5: Solve for x
    x = 175,547,124,212.04/479,912.10
  6. Step 6: Final answer
    x = 365,790.16

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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.