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Finding the Fourth Proportional to 540,247.40, 812,339.40 and 453,642.20

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Solution

The fourth proportional to 540,247.40, 812,339.40 and 453,642.20 is: 682,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,247.40 : 812,339.40 = 453,642.20 : x
  2. Step 2: Convert to fraction form
    540,247.40/812,339.40 = 453,642.20/x
  3. Step 3: Cross multiply
    540,247.40x = 812,339.40 × 453,642.20
  4. Step 4: Simplify right side
    540,247.40x = 368,511,432,562.68
  5. Step 5: Solve for x
    x = 368,511,432,562.68/540,247.40
  6. Step 6: Final answer
    x = 682,116.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.