Home / 579,971.10-870,178.38-327,536.62

Finding the Fourth Proportional to 579,971.10, 870,178.38 and 327,536.62

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Solution

The fourth proportional to 579,971.10, 870,178.38 and 327,536.62 is: 491,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,971.10 : 870,178.38 = 327,536.62 : x
  2. Step 2: Convert to fraction form
    579,971.10/870,178.38 = 327,536.62/x
  3. Step 3: Cross multiply
    579,971.10x = 870,178.38 × 327,536.62
  4. Step 4: Simplify right side
    579,971.10x = 285,015,285,382.28
  5. Step 5: Solve for x
    x = 285,015,285,382.28/579,971.10
  6. Step 6: Final answer
    x = 491,430.15

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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.