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Finding the Fourth Proportional to 424,869.48, 637,698.42 and 214,655.04

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Solution

The fourth proportional to 424,869.48, 637,698.42 and 214,655.04 is: 322,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,869.48 : 637,698.42 = 214,655.04 : x
  2. Step 2: Convert to fraction form
    424,869.48/637,698.42 = 214,655.04/x
  3. Step 3: Cross multiply
    424,869.48x = 637,698.42 × 214,655.04
  4. Step 4: Simplify right side
    424,869.48x = 136,885,179,853.04
  5. Step 5: Solve for x
    x = 136,885,179,853.04/424,869.48
  6. Step 6: Final answer
    x = 322,181.72

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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.