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Finding the Fourth Proportional to 366,922.10, 550,383.15 and 328,430.90

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Solution

The fourth proportional to 366,922.10, 550,383.15 and 328,430.90 is: 492,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,922.10 : 550,383.15 = 328,430.90 : x
  2. Step 2: Convert to fraction form
    366,922.10/550,383.15 = 328,430.90/x
  3. Step 3: Cross multiply
    366,922.10x = 550,383.15 × 328,430.90
  4. Step 4: Simplify right side
    366,922.10x = 180,762,833,299.34
  5. Step 5: Solve for x
    x = 180,762,833,299.34/366,922.10
  6. Step 6: Final answer
    x = 492,646.35

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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.