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Finding the Fourth Proportional to 582,764.40, 873,628.20 and 345,855.60

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Solution

The fourth proportional to 582,764.40, 873,628.20 and 345,855.60 is: 518,475.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,764.40 : 873,628.20 = 345,855.60 : x
  2. Step 2: Convert to fraction form
    582,764.40/873,628.20 = 345,855.60/x
  3. Step 3: Cross multiply
    582,764.40x = 873,628.20 × 345,855.60
  4. Step 4: Simplify right side
    582,764.40x = 302,149,205,287.92
  5. Step 5: Solve for x
    x = 302,149,205,287.92/582,764.40
  6. Step 6: Final answer
    x = 518,475.74

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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.