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Finding the Fourth Proportional to 582,078.30, 873,117.45 and 493,504.80

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Solution

The fourth proportional to 582,078.30, 873,117.45 and 493,504.80 is: 740,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,078.30 : 873,117.45 = 493,504.80 : x
  2. Step 2: Convert to fraction form
    582,078.30/873,117.45 = 493,504.80/x
  3. Step 3: Cross multiply
    582,078.30x = 873,117.45 × 493,504.80
  4. Step 4: Simplify right side
    582,078.30x = 430,887,652,538.76
  5. Step 5: Solve for x
    x = 430,887,652,538.76/582,078.30
  6. Step 6: Final answer
    x = 740,257.20

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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.