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Finding the Fourth Proportional to 540,161.45, 745,437.83 and 298,459.59

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Solution

The fourth proportional to 540,161.45, 745,437.83 and 298,459.59 is: 411,882.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,161.45 : 745,437.83 = 298,459.59 : x
  2. Step 2: Convert to fraction form
    540,161.45/745,437.83 = 298,459.59/x
  3. Step 3: Cross multiply
    540,161.45x = 745,437.83 × 298,459.59
  4. Step 4: Simplify right side
    540,161.45x = 222,483,067,619.99
  5. Step 5: Solve for x
    x = 222,483,067,619.99/540,161.45
  6. Step 6: Final answer
    x = 411,882.54

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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.