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Finding the Fourth Proportional to 424,870.48, 637,699.92 and 214,656.04

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Solution

The fourth proportional to 424,870.48, 637,699.92 and 214,656.04 is: 322,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,870.48 : 637,699.92 = 214,656.04 : x
  2. Step 2: Convert to fraction form
    424,870.48/637,699.92 = 214,656.04/x
  3. Step 3: Cross multiply
    424,870.48x = 637,699.92 × 214,656.04
  4. Step 4: Simplify right side
    424,870.48x = 136,886,139,535.52
  5. Step 5: Solve for x
    x = 136,886,139,535.52/424,870.48
  6. Step 6: Final answer
    x = 322,183.22

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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.