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Finding the Fourth Proportional to 965,481.80, 1,448,222.70 and 404,457.80

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Solution

The fourth proportional to 965,481.80, 1,448,222.70 and 404,457.80 is: 606,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,481.80 : 1,448,222.70 = 404,457.80 : x
  2. Step 2: Convert to fraction form
    965,481.80/1,448,222.70 = 404,457.80/x
  3. Step 3: Cross multiply
    965,481.80x = 1,448,222.70 × 404,457.80
  4. Step 4: Simplify right side
    965,481.80x = 585,744,967,152.06
  5. Step 5: Solve for x
    x = 585,744,967,152.06/965,481.80
  6. Step 6: Final answer
    x = 606,686.70

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Half scale
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Double scale
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Similar ratio
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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.