Home / 328,890.34-453,869.76-177,987.34

Finding the Fourth Proportional to 328,890.34, 453,869.76 and 177,987.34

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Solution

The fourth proportional to 328,890.34, 453,869.76 and 177,987.34 is: 245,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,890.34 : 453,869.76 = 177,987.34 : x
  2. Step 2: Convert to fraction form
    328,890.34/453,869.76 = 177,987.34/x
  3. Step 3: Cross multiply
    328,890.34x = 453,869.76 × 177,987.34
  4. Step 4: Simplify right side
    328,890.34x = 80,783,071,288.84
  5. Step 5: Solve for x
    x = 80,783,071,288.84/328,890.34
  6. Step 6: Final answer
    x = 245,623.12

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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.