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Finding the Fourth Proportional to 984,533.60, 1,476,800.40 and 978,312.80

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Solution

The fourth proportional to 984,533.60, 1,476,800.40 and 978,312.80 is: 1,467,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,533.60 : 1,476,800.40 = 978,312.80 : x
  2. Step 2: Convert to fraction form
    984,533.60/1,476,800.40 = 978,312.80/x
  3. Step 3: Cross multiply
    984,533.60x = 1,476,800.40 × 978,312.80
  4. Step 4: Simplify right side
    984,533.60x = 1,444,772,734,365.12
  5. Step 5: Solve for x
    x = 1,444,772,734,365.12/984,533.60
  6. Step 6: Final answer
    x = 1,467,469.20

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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.