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Finding the Fourth Proportional to 384,422.40, 576,633.60 and 366,926.40

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Solution

The fourth proportional to 384,422.40, 576,633.60 and 366,926.40 is: 550,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,422.40 : 576,633.60 = 366,926.40 : x
  2. Step 2: Convert to fraction form
    384,422.40/576,633.60 = 366,926.40/x
  3. Step 3: Cross multiply
    384,422.40x = 576,633.60 × 366,926.40
  4. Step 4: Simplify right side
    384,422.40x = 211,582,090,967.04
  5. Step 5: Solve for x
    x = 211,582,090,967.04/384,422.40
  6. Step 6: Final answer
    x = 550,389.60

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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.