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Finding the Fourth Proportional to 623,912.59, 860,999.38 and 337,432.68

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Solution

The fourth proportional to 623,912.59, 860,999.38 and 337,432.68 is: 465,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,912.59 : 860,999.38 = 337,432.68 : x
  2. Step 2: Convert to fraction form
    623,912.59/860,999.38 = 337,432.68/x
  3. Step 3: Cross multiply
    623,912.59x = 860,999.38 × 337,432.68
  4. Step 4: Simplify right side
    623,912.59x = 290,529,323,268.12
  5. Step 5: Solve for x
    x = 290,529,323,268.12/623,912.59
  6. Step 6: Final answer
    x = 465,657.09

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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.