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Finding the Fourth Proportional to 666,541.60, 921,596.88 and 582,560.80

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Solution

The fourth proportional to 666,541.60, 921,596.88 and 582,560.80 is: 805,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,541.60 : 921,596.88 = 582,560.80 : x
  2. Step 2: Convert to fraction form
    666,541.60/921,596.88 = 582,560.80/x
  3. Step 3: Cross multiply
    666,541.60x = 921,596.88 × 582,560.80
  4. Step 4: Simplify right side
    666,541.60x = 536,886,215,690.30
  5. Step 5: Solve for x
    x = 536,886,215,690.30/666,541.60
  6. Step 6: Final answer
    x = 805,480.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.