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Finding the Fourth Proportional to 623,336.69, 860,167.54 and 361,671.75

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Solution

The fourth proportional to 623,336.69, 860,167.54 and 361,671.75 is: 499,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,336.69 : 860,167.54 = 361,671.75 : x
  2. Step 2: Convert to fraction form
    623,336.69/860,167.54 = 361,671.75/x
  3. Step 3: Cross multiply
    623,336.69x = 860,167.54 × 361,671.75
  4. Step 4: Simplify right side
    623,336.69x = 311,098,299,485.00
  5. Step 5: Solve for x
    x = 311,098,299,485.00/623,336.69
  6. Step 6: Final answer
    x = 499,085.49

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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.