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Finding the Fourth Proportional to 623,683.99, 860,683.18 and 337,203.39

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Solution

The fourth proportional to 623,683.99, 860,683.18 and 337,203.39 is: 465,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,683.99 : 860,683.18 = 337,203.39 : x
  2. Step 2: Convert to fraction form
    623,683.99/860,683.18 = 337,203.39/x
  3. Step 3: Cross multiply
    623,683.99x = 860,683.18 × 337,203.39
  4. Step 4: Simplify right side
    623,683.99x = 290,225,287,320.68
  5. Step 5: Solve for x
    x = 290,225,287,320.68/623,683.99
  6. Step 6: Final answer
    x = 465,340.29

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Double scale
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Similar ratio
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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.