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Finding the Fourth Proportional to 623,649.28, 860,636.06 and 337,169.28

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Solution

The fourth proportional to 623,649.28, 860,636.06 and 337,169.28 is: 465,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,649.28 : 860,636.06 = 337,169.28 : x
  2. Step 2: Convert to fraction form
    623,649.28/860,636.06 = 337,169.28/x
  3. Step 3: Cross multiply
    623,649.28x = 860,636.06 × 337,169.28
  4. Step 4: Simplify right side
    623,649.28x = 290,180,040,692.24
  5. Step 5: Solve for x
    x = 290,180,040,692.24/623,649.28
  6. Step 6: Final answer
    x = 465,293.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.