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Finding the Fourth Proportional to 623,334.69, 860,164.79 and 361,669.75

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Solution

The fourth proportional to 623,334.69, 860,164.79 and 361,669.75 is: 499,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,334.69 : 860,164.79 = 361,669.75 : x
  2. Step 2: Convert to fraction form
    623,334.69/860,164.79 = 361,669.75/x
  3. Step 3: Cross multiply
    623,334.69x = 860,164.79 × 361,669.75
  4. Step 4: Simplify right side
    623,334.69x = 311,095,580,599.34
  5. Step 5: Solve for x
    x = 311,095,580,599.34/623,334.69
  6. Step 6: Final answer
    x = 499,082.73

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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.