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Finding the Fourth Proportional to 359,832.40, 496,570.81 and 198,684.40

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Solution

The fourth proportional to 359,832.40, 496,570.81 and 198,684.40 is: 274,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,832.40 : 496,570.81 = 198,684.40 : x
  2. Step 2: Convert to fraction form
    359,832.40/496,570.81 = 198,684.40/x
  3. Step 3: Cross multiply
    359,832.40x = 496,570.81 × 198,684.40
  4. Step 4: Simplify right side
    359,832.40x = 98,660,870,959.51
  5. Step 5: Solve for x
    x = 98,660,870,959.51/359,832.40
  6. Step 6: Final answer
    x = 274,185.63

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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.