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Finding the Fourth Proportional to 567,078.19, 782,565.57 and 308,954.41

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Solution

The fourth proportional to 567,078.19, 782,565.57 and 308,954.41 is: 426,355.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,078.19 : 782,565.57 = 308,954.41 : x
  2. Step 2: Convert to fraction form
    567,078.19/782,565.57 = 308,954.41/x
  3. Step 3: Cross multiply
    567,078.19x = 782,565.57 × 308,954.41
  4. Step 4: Simplify right side
    567,078.19x = 241,777,082,009.25
  5. Step 5: Solve for x
    x = 241,777,082,009.25/567,078.19
  6. Step 6: Final answer
    x = 426,355.81

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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.