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Finding the Fourth Proportional to 632,183.28, 872,412.55 and 345,703.37

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Solution

The fourth proportional to 632,183.28, 872,412.55 and 345,703.37 is: 477,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,183.28 : 872,412.55 = 345,703.37 : x
  2. Step 2: Convert to fraction form
    632,183.28/872,412.55 = 345,703.37/x
  3. Step 3: Cross multiply
    632,183.28x = 872,412.55 × 345,703.37
  4. Step 4: Simplify right side
    632,183.28x = 301,595,958,565.29
  5. Step 5: Solve for x
    x = 301,595,958,565.29/632,183.28
  6. Step 6: Final answer
    x = 477,070.44

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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.