Home / 386,131.08-578,927.76-169,885.08

Finding the Fourth Proportional to 386,131.08, 578,927.76 and 169,885.08

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Solution

The fourth proportional to 386,131.08, 578,927.76 and 169,885.08 is: 254,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,131.08 : 578,927.76 = 169,885.08 : x
  2. Step 2: Convert to fraction form
    386,131.08/578,927.76 = 169,885.08/x
  3. Step 3: Cross multiply
    386,131.08x = 578,927.76 × 169,885.08
  4. Step 4: Simplify right side
    386,131.08x = 98,351,188,821.82
  5. Step 5: Solve for x
    x = 98,351,188,821.82/386,131.08
  6. Step 6: Final answer
    x = 254,709.33

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1.5x scale

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.