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Finding the Fourth Proportional to 382,053.70, 573,080.55 and 340,719.40

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Solution

The fourth proportional to 382,053.70, 573,080.55 and 340,719.40 is: 511,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,053.70 : 573,080.55 = 340,719.40 : x
  2. Step 2: Convert to fraction form
    382,053.70/573,080.55 = 340,719.40/x
  3. Step 3: Cross multiply
    382,053.70x = 573,080.55 × 340,719.40
  4. Step 4: Simplify right side
    382,053.70x = 195,259,661,147.67
  5. Step 5: Solve for x
    x = 195,259,661,147.67/382,053.70
  6. Step 6: Final answer
    x = 511,079.10

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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.