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Finding the Fourth Proportional to 366,872.90, 550,309.35 and 156,920.90

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Solution

The fourth proportional to 366,872.90, 550,309.35 and 156,920.90 is: 235,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,872.90 : 550,309.35 = 156,920.90 : x
  2. Step 2: Convert to fraction form
    366,872.90/550,309.35 = 156,920.90/x
  3. Step 3: Cross multiply
    366,872.90x = 550,309.35 × 156,920.90
  4. Step 4: Simplify right side
    366,872.90x = 86,355,038,480.42
  5. Step 5: Solve for x
    x = 86,355,038,480.42/366,872.90
  6. Step 6: Final answer
    x = 235,381.35

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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.