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Finding the Fourth Proportional to 382,646.40, 573,278.40 and 327,350.40

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Solution

The fourth proportional to 382,646.40, 573,278.40 and 327,350.40 is: 490,434.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,646.40 : 573,278.40 = 327,350.40 : x
  2. Step 2: Convert to fraction form
    382,646.40/573,278.40 = 327,350.40/x
  3. Step 3: Cross multiply
    382,646.40x = 573,278.40 × 327,350.40
  4. Step 4: Simplify right side
    382,646.40x = 187,662,913,551.36
  5. Step 5: Solve for x
    x = 187,662,913,551.36/382,646.40
  6. Step 6: Final answer
    x = 490,434.28

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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.