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Finding the Fourth Proportional to 540,137.06, 745,325.61 and 298,405.22

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Solution

The fourth proportional to 540,137.06, 745,325.61 and 298,405.22 is: 411,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,137.06 : 745,325.61 = 298,405.22 : x
  2. Step 2: Convert to fraction form
    540,137.06/745,325.61 = 298,405.22/x
  3. Step 3: Cross multiply
    540,137.06x = 745,325.61 × 298,405.22
  4. Step 4: Simplify right side
    540,137.06x = 222,409,049,876.20
  5. Step 5: Solve for x
    x = 222,409,049,876.20/540,137.06
  6. Step 6: Final answer
    x = 411,764.10

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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.