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Finding the Fourth Proportional to 382,079.70, 573,119.55 and 346,650.30

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Solution

The fourth proportional to 382,079.70, 573,119.55 and 346,650.30 is: 519,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,079.70 : 573,119.55 = 346,650.30 : x
  2. Step 2: Convert to fraction form
    382,079.70/573,119.55 = 346,650.30/x
  3. Step 3: Cross multiply
    382,079.70x = 573,119.55 × 346,650.30
  4. Step 4: Simplify right side
    382,079.70x = 198,672,063,943.37
  5. Step 5: Solve for x
    x = 198,672,063,943.37/382,079.70
  6. Step 6: Final answer
    x = 519,975.45

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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.