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Finding the Fourth Proportional to 591,624.40, 886,918.20 and 354,715.60

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Solution

The fourth proportional to 591,624.40, 886,918.20 and 354,715.60 is: 531,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,624.40 : 886,918.20 = 354,715.60 : x
  2. Step 2: Convert to fraction form
    591,624.40/886,918.20 = 354,715.60/x
  3. Step 3: Cross multiply
    591,624.40x = 886,918.20 × 354,715.60
  4. Step 4: Simplify right side
    591,624.40x = 314,603,721,463.92
  5. Step 5: Solve for x
    x = 314,603,721,463.92/591,624.40
  6. Step 6: Final answer
    x = 531,762.59

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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.