Home / 916,514.40-1,375,117.20-443,618.40

Finding the Fourth Proportional to 916,514.40, 1,375,117.20 and 443,618.40

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Solution

The fourth proportional to 916,514.40, 1,375,117.20 and 443,618.40 is: 665,594.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,514.40 : 1,375,117.20 = 443,618.40 : x
  2. Step 2: Convert to fraction form
    916,514.40/1,375,117.20 = 443,618.40/x
  3. Step 3: Cross multiply
    916,514.40x = 1,375,117.20 × 443,618.40
  4. Step 4: Simplify right side
    916,514.40x = 610,027,292,076.48
  5. Step 5: Solve for x
    x = 610,027,292,076.48/916,514.40
  6. Step 6: Final answer
    x = 665,594.88

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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.