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Finding the Fourth Proportional to 623,601.90, 860,549.67 and 394,282.62

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Solution

The fourth proportional to 623,601.90, 860,549.67 and 394,282.62 is: 544,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,601.90 : 860,549.67 = 394,282.62 : x
  2. Step 2: Convert to fraction form
    623,601.90/860,549.67 = 394,282.62/x
  3. Step 3: Cross multiply
    623,601.90x = 860,549.67 × 394,282.62
  4. Step 4: Simplify right side
    623,601.90x = 339,299,778,527.74
  5. Step 5: Solve for x
    x = 339,299,778,527.74/623,601.90
  6. Step 6: Final answer
    x = 544,096.77

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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.