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Finding the Fourth Proportional to 590,528.80, 885,793.20 and 340,919.20

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Solution

The fourth proportional to 590,528.80, 885,793.20 and 340,919.20 is: 511,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,528.80 : 885,793.20 = 340,919.20 : x
  2. Step 2: Convert to fraction form
    590,528.80/885,793.20 = 340,919.20/x
  3. Step 3: Cross multiply
    590,528.80x = 885,793.20 × 340,919.20
  4. Step 4: Simplify right side
    590,528.80x = 301,983,909,109.44
  5. Step 5: Solve for x
    x = 301,983,909,109.44/590,528.80
  6. Step 6: Final answer
    x = 511,378.80

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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.