Home / 289,696.40-434,566.20-102,683.60

Finding the Fourth Proportional to 289,696.40, 434,566.20 and 102,683.60

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Solution

The fourth proportional to 289,696.40, 434,566.20 and 102,683.60 is: 154,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,696.40 : 434,566.20 = 102,683.60 : x
  2. Step 2: Convert to fraction form
    289,696.40/434,566.20 = 102,683.60/x
  3. Step 3: Cross multiply
    289,696.40x = 434,566.20 × 102,683.60
  4. Step 4: Simplify right side
    289,696.40x = 44,622,821,854.32
  5. Step 5: Solve for x
    x = 44,622,821,854.32/289,696.40
  6. Step 6: Final answer
    x = 154,033.06

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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.