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Finding the Fourth Proportional to 657,672.70, 986,509.05 and 184,438.30

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Solution

The fourth proportional to 657,672.70, 986,509.05 and 184,438.30 is: 276,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,672.70 : 986,509.05 = 184,438.30 : x
  2. Step 2: Convert to fraction form
    657,672.70/986,509.05 = 184,438.30/x
  3. Step 3: Cross multiply
    657,672.70x = 986,509.05 × 184,438.30
  4. Step 4: Simplify right side
    657,672.70x = 181,950,052,116.62
  5. Step 5: Solve for x
    x = 181,950,052,116.62/657,672.70
  6. Step 6: Final answer
    x = 276,657.45

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Similar ratio
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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.