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Finding the Fourth Proportional to 219,969.80, 328,970.55 and 184,540.40

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Solution

The fourth proportional to 219,969.80, 328,970.55 and 184,540.40 is: 275,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,969.80 : 328,970.55 = 184,540.40 : x
  2. Step 2: Convert to fraction form
    219,969.80/328,970.55 = 184,540.40/x
  3. Step 3: Cross multiply
    219,969.80x = 328,970.55 × 184,540.40
  4. Step 4: Simplify right side
    219,969.80x = 60,708,356,885.22
  5. Step 5: Solve for x
    x = 60,708,356,885.22/219,969.80
  6. Step 6: Final answer
    x = 275,984.96

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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.