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Finding the Fourth Proportional to 574,386.84, 861,584.52 and 214,639.01

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Solution

The fourth proportional to 574,386.84, 861,584.52 and 214,639.01 is: 321,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,386.84 : 861,584.52 = 214,639.01 : x
  2. Step 2: Convert to fraction form
    574,386.84/861,584.52 = 214,639.01/x
  3. Step 3: Cross multiply
    574,386.84x = 861,584.52 × 214,639.01
  4. Step 4: Simplify right side
    574,386.84x = 184,929,644,096.20
  5. Step 5: Solve for x
    x = 184,929,644,096.20/574,386.84
  6. Step 6: Final answer
    x = 321,960.10

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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.