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Finding the Fourth Proportional to 360,815.40, 541,271.70 and 124,230.60

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Solution

The fourth proportional to 360,815.40, 541,271.70 and 124,230.60 is: 186,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,815.40 : 541,271.70 = 124,230.60 : x
  2. Step 2: Convert to fraction form
    360,815.40/541,271.70 = 124,230.60/x
  3. Step 3: Cross multiply
    360,815.40x = 541,271.70 × 124,230.60
  4. Step 4: Simplify right side
    360,815.40x = 67,242,508,054.02
  5. Step 5: Solve for x
    x = 67,242,508,054.02/360,815.40
  6. Step 6: Final answer
    x = 186,362.63

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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.