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Finding the Fourth Proportional to 933,452.64, 1,288,190.70 and 570,870

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Solution

The fourth proportional to 933,452.64, 1,288,190.70 and 570,870 is: 787,816.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,452.64 : 1,288,190.70 = 570,870 : x
  2. Step 2: Convert to fraction form
    933,452.64/1,288,190.70 = 570,870/x
  3. Step 3: Cross multiply
    933,452.64x = 1,288,190.70 × 570,870
  4. Step 4: Simplify right side
    933,452.64x = 735,389,424,909
  5. Step 5: Solve for x
    x = 735,389,424,909/933,452.64
  6. Step 6: Final answer
    x = 787,816.54

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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.