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Finding the Fourth Proportional to 483,502.80, 725,254.20 and 128,552.70

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Solution

The fourth proportional to 483,502.80, 725,254.20 and 128,552.70 is: 192,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,502.80 : 725,254.20 = 128,552.70 : x
  2. Step 2: Convert to fraction form
    483,502.80/725,254.20 = 128,552.70/x
  3. Step 3: Cross multiply
    483,502.80x = 725,254.20 × 128,552.70
  4. Step 4: Simplify right side
    483,502.80x = 93,233,385,596.34
  5. Step 5: Solve for x
    x = 93,233,385,596.34/483,502.80
  6. Step 6: Final answer
    x = 192,829.05

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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.