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Finding the Fourth Proportional to 366,901.70, 550,352.55 and 130,268.30

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Solution

The fourth proportional to 366,901.70, 550,352.55 and 130,268.30 is: 195,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,901.70 : 550,352.55 = 130,268.30 : x
  2. Step 2: Convert to fraction form
    366,901.70/550,352.55 = 130,268.30/x
  3. Step 3: Cross multiply
    366,901.70x = 550,352.55 × 130,268.30
  4. Step 4: Simplify right side
    366,901.70x = 71,693,491,089.17
  5. Step 5: Solve for x
    x = 71,693,491,089.17/366,901.70
  6. Step 6: Final answer
    x = 195,402.45

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1.5x scale

Why These Related Problems?

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