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Finding the Fourth Proportional to 480,580.23, 720,870.39 and 181,128

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Solution

The fourth proportional to 480,580.23, 720,870.39 and 181,128 is: 271,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,580.23 : 720,870.39 = 181,128 : x
  2. Step 2: Convert to fraction form
    480,580.23/720,870.39 = 181,128/x
  3. Step 3: Cross multiply
    480,580.23x = 720,870.39 × 181,128
  4. Step 4: Simplify right side
    480,580.23x = 130,569,811,999.92
  5. Step 5: Solve for x
    x = 130,569,811,999.92/480,580.23
  6. Step 6: Final answer
    x = 271,692.02

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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.