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Finding the Fourth Proportional to 623,440.80, 933,778.80 and 374,608.80

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Solution

The fourth proportional to 623,440.80, 933,778.80 and 374,608.80 is: 561,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,440.80 : 933,778.80 = 374,608.80 : x
  2. Step 2: Convert to fraction form
    623,440.80/933,778.80 = 374,608.80/x
  3. Step 3: Cross multiply
    623,440.80x = 933,778.80 × 374,608.80
  4. Step 4: Simplify right side
    623,440.80x = 349,801,755,733.44
  5. Step 5: Solve for x
    x = 349,801,755,733.44/623,440.80
  6. Step 6: Final answer
    x = 561,082.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.