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Finding the Fourth Proportional to 424,998.30, 637,497.45 and 144,515.55

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Solution

The fourth proportional to 424,998.30, 637,497.45 and 144,515.55 is: 216,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,998.30 : 637,497.45 = 144,515.55 : x
  2. Step 2: Convert to fraction form
    424,998.30/637,497.45 = 144,515.55/x
  3. Step 3: Cross multiply
    424,998.30x = 637,497.45 × 144,515.55
  4. Step 4: Simplify right side
    424,998.30x = 92,128,294,610.35
  5. Step 5: Solve for x
    x = 92,128,294,610.35/424,998.30
  6. Step 6: Final answer
    x = 216,773.33

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1.5x scale

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.