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Finding the Fourth Proportional to 858,543.80, 1,286,586.90 and 595,580.60

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Solution

The fourth proportional to 858,543.80, 1,286,586.90 and 595,580.60 is: 892,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,543.80 : 1,286,586.90 = 595,580.60 : x
  2. Step 2: Convert to fraction form
    858,543.80/1,286,586.90 = 595,580.60/x
  3. Step 3: Cross multiply
    858,543.80x = 1,286,586.90 × 595,580.60
  4. Step 4: Simplify right side
    858,543.80x = 766,266,197,854.14
  5. Step 5: Solve for x
    x = 766,266,197,854.14/858,543.80
  6. Step 6: Final answer
    x = 892,518.47

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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.