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Finding the Fourth Proportional to 413,840.13, 620,760.19 and 118,352.13

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Solution

The fourth proportional to 413,840.13, 620,760.19 and 118,352.13 is: 177,528.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,840.13 : 620,760.19 = 118,352.13 : x
  2. Step 2: Convert to fraction form
    413,840.13/620,760.19 = 118,352.13/x
  3. Step 3: Cross multiply
    413,840.13x = 620,760.19 × 118,352.13
  4. Step 4: Simplify right side
    413,840.13x = 73,468,290,705.70
  5. Step 5: Solve for x
    x = 73,468,290,705.70/413,840.13
  6. Step 6: Final answer
    x = 177,528.19

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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.