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Finding the Fourth Proportional to 623,712.91, 860,723.25 and 337,232.32

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Solution

The fourth proportional to 623,712.91, 860,723.25 and 337,232.32 is: 465,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,712.91 : 860,723.25 = 337,232.32 : x
  2. Step 2: Convert to fraction form
    623,712.91/860,723.25 = 337,232.32/x
  3. Step 3: Cross multiply
    623,712.91x = 860,723.25 × 337,232.32
  4. Step 4: Simplify right side
    623,712.91x = 290,263,698,475.44
  5. Step 5: Solve for x
    x = 290,263,698,475.44/623,712.91
  6. Step 6: Final answer
    x = 465,380.30

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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.