Home / 289,777.94-399,903.93-168,899.75

Finding the Fourth Proportional to 289,777.94, 399,903.93 and 168,899.75

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Solution

The fourth proportional to 289,777.94, 399,903.93 and 168,899.75 is: 233,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,777.94 : 399,903.93 = 168,899.75 : x
  2. Step 2: Convert to fraction form
    289,777.94/399,903.93 = 168,899.75/x
  3. Step 3: Cross multiply
    289,777.94x = 399,903.93 × 168,899.75
  4. Step 4: Simplify right side
    289,777.94x = 67,543,673,801.02
  5. Step 5: Solve for x
    x = 67,543,673,801.02/289,777.94
  6. Step 6: Final answer
    x = 233,087.70

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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.