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Finding the Fourth Proportional to 359,764.48, 496,491.60 and 198,642.40

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Solution

The fourth proportional to 359,764.48, 496,491.60 and 198,642.40 is: 274,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,764.48 : 496,491.60 = 198,642.40 : x
  2. Step 2: Convert to fraction form
    359,764.48/496,491.60 = 198,642.40/x
  3. Step 3: Cross multiply
    359,764.48x = 496,491.60 × 198,642.40
  4. Step 4: Simplify right side
    359,764.48x = 98,624,283,003.84
  5. Step 5: Solve for x
    x = 98,624,283,003.84/359,764.48
  6. Step 6: Final answer
    x = 274,135.69

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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.