Home / 351,436.90-484,974-196,389.52

Finding the Fourth Proportional to 351,436.90, 484,974 and 196,389.52

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Solution

The fourth proportional to 351,436.90, 484,974 and 196,389.52 is: 271,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,436.90 : 484,974 = 196,389.52 : x
  2. Step 2: Convert to fraction form
    351,436.90/484,974 = 196,389.52/x
  3. Step 3: Cross multiply
    351,436.90x = 484,974 × 196,389.52
  4. Step 4: Simplify right side
    351,436.90x = 95,243,811,072.48
  5. Step 5: Solve for x
    x = 95,243,811,072.48/351,436.90
  6. Step 6: Final answer
    x = 271,012.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.