Home / 354,916.07-489,795.75-193,783.37

Finding the Fourth Proportional to 354,916.07, 489,795.75 and 193,783.37

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Solution

The fourth proportional to 354,916.07, 489,795.75 and 193,783.37 is: 267,427.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,916.07 : 489,795.75 = 193,783.37 : x
  2. Step 2: Convert to fraction form
    354,916.07/489,795.75 = 193,783.37/x
  3. Step 3: Cross multiply
    354,916.07x = 489,795.75 × 193,783.37
  4. Step 4: Simplify right side
    354,916.07x = 94,914,268,597.70
  5. Step 5: Solve for x
    x = 94,914,268,597.70/354,916.07
  6. Step 6: Final answer
    x = 267,427.37

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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.