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Finding the Fourth Proportional to 483,684.88, 725,526.36 and 128,698.88

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Solution

The fourth proportional to 483,684.88, 725,526.36 and 128,698.88 is: 193,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,684.88 : 725,526.36 = 128,698.88 : x
  2. Step 2: Convert to fraction form
    483,684.88/725,526.36 = 128,698.88/x
  3. Step 3: Cross multiply
    483,684.88x = 725,526.36 × 128,698.88
  4. Step 4: Simplify right side
    483,684.88x = 93,374,429,942.48
  5. Step 5: Solve for x
    x = 93,374,429,942.48/483,684.88
  6. Step 6: Final answer
    x = 193,048.06

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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.