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Finding the Fourth Proportional to 519,851.44, 778,002.95 and 435,706.62

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Solution

The fourth proportional to 519,851.44, 778,002.95 and 435,706.62 is: 652,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,851.44 : 778,002.95 = 435,706.62 : x
  2. Step 2: Convert to fraction form
    519,851.44/778,002.95 = 435,706.62/x
  3. Step 3: Cross multiply
    519,851.44x = 778,002.95 × 435,706.62
  4. Step 4: Simplify right side
    519,851.44x = 338,981,035,694.53
  5. Step 5: Solve for x
    x = 338,981,035,694.53/519,851.44
  6. Step 6: Final answer
    x = 652,072.90

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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.