Home / 289,832.23-399,991.67-160,783.44

Finding the Fourth Proportional to 289,832.23, 399,991.67 and 160,783.44

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Solution

The fourth proportional to 289,832.23, 399,991.67 and 160,783.44 is: 221,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,832.23 : 399,991.67 = 160,783.44 : x
  2. Step 2: Convert to fraction form
    289,832.23/399,991.67 = 160,783.44/x
  3. Step 3: Cross multiply
    289,832.23x = 399,991.67 × 160,783.44
  4. Step 4: Simplify right side
    289,832.23x = 64,312,036,673.94
  5. Step 5: Solve for x
    x = 64,312,036,673.94/289,832.23
  6. Step 6: Final answer
    x = 221,894.01

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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.