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Finding the Fourth Proportional to 483,790.80, 725,686.20 and 350,043.60

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Solution

The fourth proportional to 483,790.80, 725,686.20 and 350,043.60 is: 525,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,790.80 : 725,686.20 = 350,043.60 : x
  2. Step 2: Convert to fraction form
    483,790.80/725,686.20 = 350,043.60/x
  3. Step 3: Cross multiply
    483,790.80x = 725,686.20 × 350,043.60
  4. Step 4: Simplify right side
    483,790.80x = 254,021,809,918.32
  5. Step 5: Solve for x
    x = 254,021,809,918.32/483,790.80
  6. Step 6: Final answer
    x = 525,065.40

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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.