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Finding the Fourth Proportional to 582,600.80, 873,901.20 and 345,821.60

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Solution

The fourth proportional to 582,600.80, 873,901.20 and 345,821.60 is: 518,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,600.80 : 873,901.20 = 345,821.60 : x
  2. Step 2: Convert to fraction form
    582,600.80/873,901.20 = 345,821.60/x
  3. Step 3: Cross multiply
    582,600.80x = 873,901.20 × 345,821.60
  4. Step 4: Simplify right side
    582,600.80x = 302,213,911,225.92
  5. Step 5: Solve for x
    x = 302,213,911,225.92/582,600.80
  6. Step 6: Final answer
    x = 518,732.40

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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.