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Finding the Fourth Proportional to 424,911.90, 637,396.65 and 144,450.30

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Solution

The fourth proportional to 424,911.90, 637,396.65 and 144,450.30 is: 216,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,911.90 : 637,396.65 = 144,450.30 : x
  2. Step 2: Convert to fraction form
    424,911.90/637,396.65 = 144,450.30/x
  3. Step 3: Cross multiply
    424,911.90x = 637,396.65 × 144,450.30
  4. Step 4: Simplify right side
    424,911.90x = 92,072,137,311.50
  5. Step 5: Solve for x
    x = 92,072,137,311.50/424,911.90
  6. Step 6: Final answer
    x = 216,685.24

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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.