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Finding the Fourth Proportional to 547,688.80, 821,619.60 and 173,749.60

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Solution

The fourth proportional to 547,688.80, 821,619.60 and 173,749.60 is: 260,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,688.80 : 821,619.60 = 173,749.60 : x
  2. Step 2: Convert to fraction form
    547,688.80/821,619.60 = 173,749.60/x
  3. Step 3: Cross multiply
    547,688.80x = 821,619.60 × 173,749.60
  4. Step 4: Simplify right side
    547,688.80x = 142,756,076,852.16
  5. Step 5: Solve for x
    x = 142,756,076,852.16/547,688.80
  6. Step 6: Final answer
    x = 260,651.81

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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.