Home / 886,956.90-1,330,763.40-287,937.60

Finding the Fourth Proportional to 886,956.90, 1,330,763.40 and 287,937.60

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Solution

The fourth proportional to 886,956.90, 1,330,763.40 and 287,937.60 is: 432,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,956.90 : 1,330,763.40 = 287,937.60 : x
  2. Step 2: Convert to fraction form
    886,956.90/1,330,763.40 = 287,937.60/x
  3. Step 3: Cross multiply
    886,956.90x = 1,330,763.40 × 287,937.60
  4. Step 4: Simplify right side
    886,956.90x = 383,176,819,563.84
  5. Step 5: Solve for x
    x = 383,176,819,563.84/886,956.90
  6. Step 6: Final answer
    x = 432,012.90

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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.