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Finding the Fourth Proportional to 468,878.50, 647,052.60 and 254,020.06

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Solution

The fourth proportional to 468,878.50, 647,052.60 and 254,020.06 is: 350,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,878.50 : 647,052.60 = 254,020.06 : x
  2. Step 2: Convert to fraction form
    468,878.50/647,052.60 = 254,020.06/x
  3. Step 3: Cross multiply
    468,878.50x = 647,052.60 × 254,020.06
  4. Step 4: Simplify right side
    468,878.50x = 164,364,340,275.16
  5. Step 5: Solve for x
    x = 164,364,340,275.16/468,878.50
  6. Step 6: Final answer
    x = 350,547.83

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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.