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Finding the Fourth Proportional to 519,331.40, 779,346.21 and 182,374.64

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Solution

The fourth proportional to 519,331.40, 779,346.21 and 182,374.64 is: 273,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,331.40 : 779,346.21 = 182,374.64 : x
  2. Step 2: Convert to fraction form
    519,331.40/779,346.21 = 182,374.64/x
  3. Step 3: Cross multiply
    519,331.40x = 779,346.21 × 182,374.64
  4. Step 4: Simplify right side
    519,331.40x = 142,132,984,484.11
  5. Step 5: Solve for x
    x = 142,132,984,484.11/519,331.40
  6. Step 6: Final answer
    x = 273,684.56

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1.5x scale

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.