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Finding the Fourth Proportional to 623,771.40, 860,803.92 and 337,290.80

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Solution

The fourth proportional to 623,771.40, 860,803.92 and 337,290.80 is: 465,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,771.40 : 860,803.92 = 337,290.80 : x
  2. Step 2: Convert to fraction form
    623,771.40/860,803.92 = 337,290.80/x
  3. Step 3: Cross multiply
    623,771.40x = 860,803.92 × 337,290.80
  4. Step 4: Simplify right side
    623,771.40x = 290,341,242,819.94
  5. Step 5: Solve for x
    x = 290,341,242,819.94/623,771.40
  6. Step 6: Final answer
    x = 465,460.97

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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.