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Finding the Fourth Proportional to 360,343.60, 540,093.20 and 146,978.35

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Solution

The fourth proportional to 360,343.60, 540,093.20 and 146,978.35 is: 220,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,343.60 : 540,093.20 = 146,978.35 : x
  2. Step 2: Convert to fraction form
    360,343.60/540,093.20 = 146,978.35/x
  3. Step 3: Cross multiply
    360,343.60x = 540,093.20 × 146,978.35
  4. Step 4: Simplify right side
    360,343.60x = 79,382,007,382.22
  5. Step 5: Solve for x
    x = 79,382,007,382.22/360,343.60
  6. Step 6: Final answer
    x = 220,295.32

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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.