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Finding the Fourth Proportional to 581,205.80, 871,938.30 and 455,234.60

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Solution

The fourth proportional to 581,205.80, 871,938.30 and 455,234.60 is: 682,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,205.80 : 871,938.30 = 455,234.60 : x
  2. Step 2: Convert to fraction form
    581,205.80/871,938.30 = 455,234.60/x
  3. Step 3: Cross multiply
    581,205.80x = 871,938.30 × 455,234.60
  4. Step 4: Simplify right side
    581,205.80x = 396,936,483,225.18
  5. Step 5: Solve for x
    x = 396,936,483,225.18/581,205.80
  6. Step 6: Final answer
    x = 682,953.41

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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.