Home / 921,190.65-1,271,245.74-534,081.30

Finding the Fourth Proportional to 921,190.65, 1,271,245.74 and 534,081.30

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Solution

The fourth proportional to 921,190.65, 1,271,245.74 and 534,081.30 is: 737,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,190.65 : 1,271,245.74 = 534,081.30 : x
  2. Step 2: Convert to fraction form
    921,190.65/1,271,245.74 = 534,081.30/x
  3. Step 3: Cross multiply
    921,190.65x = 1,271,245.74 × 534,081.30
  4. Step 4: Simplify right side
    921,190.65x = 678,948,577,438.66
  5. Step 5: Solve for x
    x = 678,948,577,438.66/921,190.65
  6. Step 6: Final answer
    x = 737,033.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.