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Finding the Fourth Proportional to 574,912.60, 862,368.90 and 565,581.40

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Solution

The fourth proportional to 574,912.60, 862,368.90 and 565,581.40 is: 848,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,912.60 : 862,368.90 = 565,581.40 : x
  2. Step 2: Convert to fraction form
    574,912.60/862,368.90 = 565,581.40/x
  3. Step 3: Cross multiply
    574,912.60x = 862,368.90 × 565,581.40
  4. Step 4: Simplify right side
    574,912.60x = 487,739,809,778.46
  5. Step 5: Solve for x
    x = 487,739,809,778.46/574,912.60
  6. Step 6: Final answer
    x = 848,372.10

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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.