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Finding the Fourth Proportional to 424,898.19, 637,494.84 and 188,406.81

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Solution

The fourth proportional to 424,898.19, 637,494.84 and 188,406.81 is: 282,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,898.19 : 637,494.84 = 188,406.81 : x
  2. Step 2: Convert to fraction form
    424,898.19/637,494.84 = 188,406.81/x
  3. Step 3: Cross multiply
    424,898.19x = 637,494.84 × 188,406.81
  4. Step 4: Simplify right side
    424,898.19x = 120,108,369,195.86
  5. Step 5: Solve for x
    x = 120,108,369,195.86/424,898.19
  6. Step 6: Final answer
    x = 282,675.64

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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.