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Finding the Fourth Proportional to 359,555.22, 496,116.90 and 216,324.48

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Solution

The fourth proportional to 359,555.22, 496,116.90 and 216,324.48 is: 298,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,555.22 : 496,116.90 = 216,324.48 : x
  2. Step 2: Convert to fraction form
    359,555.22/496,116.90 = 216,324.48/x
  3. Step 3: Cross multiply
    359,555.22x = 496,116.90 × 216,324.48
  4. Step 4: Simplify right side
    359,555.22x = 107,322,230,411.71
  5. Step 5: Solve for x
    x = 107,322,230,411.71/359,555.22
  6. Step 6: Final answer
    x = 298,486.09

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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.