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Finding the Fourth Proportional to 678,034.80, 1,015,885.80 and 573,058.80

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Solution

The fourth proportional to 678,034.80, 1,015,885.80 and 573,058.80 is: 858,602.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,034.80 : 1,015,885.80 = 573,058.80 : x
  2. Step 2: Convert to fraction form
    678,034.80/1,015,885.80 = 573,058.80/x
  3. Step 3: Cross multiply
    678,034.80x = 1,015,885.80 × 573,058.80
  4. Step 4: Simplify right side
    678,034.80x = 582,162,297,485.04
  5. Step 5: Solve for x
    x = 582,162,297,485.04/678,034.80
  6. Step 6: Final answer
    x = 858,602.39

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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.