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Finding the Fourth Proportional to 623,665.60, 860,658.42 and 337,185.68

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Solution

The fourth proportional to 623,665.60, 860,658.42 and 337,185.68 is: 465,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,665.60 : 860,658.42 = 337,185.68 : x
  2. Step 2: Convert to fraction form
    623,665.60/860,658.42 = 337,185.68/x
  3. Step 3: Cross multiply
    623,665.60x = 860,658.42 × 337,185.68
  4. Step 4: Simplify right side
    623,665.60x = 290,201,694,595.43
  5. Step 5: Solve for x
    x = 290,201,694,595.43/623,665.60
  6. Step 6: Final answer
    x = 465,316.18

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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.