Home / 921,189.15-1,271,243.61-534,079.80

Finding the Fourth Proportional to 921,189.15, 1,271,243.61 and 534,079.80

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Solution

The fourth proportional to 921,189.15, 1,271,243.61 and 534,079.80 is: 737,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,189.15 : 1,271,243.61 = 534,079.80 : x
  2. Step 2: Convert to fraction form
    921,189.15/1,271,243.61 = 534,079.80/x
  3. Step 3: Cross multiply
    921,189.15x = 1,271,243.61 × 534,079.80
  4. Step 4: Simplify right side
    921,189.15x = 678,945,532,980.08
  5. Step 5: Solve for x
    x = 678,945,532,980.08/921,189.15
  6. Step 6: Final answer
    x = 737,031.62

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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.