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Finding the Fourth Proportional to 640,016.80, 957,692.40 and 584,029.60

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Solution

The fourth proportional to 640,016.80, 957,692.40 and 584,029.60 is: 873,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,016.80 : 957,692.40 = 584,029.60 : x
  2. Step 2: Convert to fraction form
    640,016.80/957,692.40 = 584,029.60/x
  3. Step 3: Cross multiply
    640,016.80x = 957,692.40 × 584,029.60
  4. Step 4: Simplify right side
    640,016.80x = 559,320,709,295.04
  5. Step 5: Solve for x
    x = 559,320,709,295.04/640,016.80
  6. Step 6: Final answer
    x = 873,915.67

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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.