Home / 511,823.20-767,792.40-156,834.40

Finding the Fourth Proportional to 511,823.20, 767,792.40 and 156,834.40

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Solution

The fourth proportional to 511,823.20, 767,792.40 and 156,834.40 is: 235,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,823.20 : 767,792.40 = 156,834.40 : x
  2. Step 2: Convert to fraction form
    511,823.20/767,792.40 = 156,834.40/x
  3. Step 3: Cross multiply
    511,823.20x = 767,792.40 × 156,834.40
  4. Step 4: Simplify right side
    511,823.20x = 120,416,260,378.56
  5. Step 5: Solve for x
    x = 120,416,260,378.56/511,823.20
  6. Step 6: Final answer
    x = 235,269.25

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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.