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Finding the Fourth Proportional to 366,941.90, 550,412.85 and 156,989.90

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Solution

The fourth proportional to 366,941.90, 550,412.85 and 156,989.90 is: 235,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,941.90 : 550,412.85 = 156,989.90 : x
  2. Step 2: Convert to fraction form
    366,941.90/550,412.85 = 156,989.90/x
  3. Step 3: Cross multiply
    366,941.90x = 550,412.85 × 156,989.90
  4. Step 4: Simplify right side
    366,941.90x = 86,409,258,280.22
  5. Step 5: Solve for x
    x = 86,409,258,280.22/366,941.90
  6. Step 6: Final answer
    x = 235,484.85

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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.