Home / 696,104.40-1,044,156.60-428,998.80

Finding the Fourth Proportional to 696,104.40, 1,044,156.60 and 428,998.80

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Solution

The fourth proportional to 696,104.40, 1,044,156.60 and 428,998.80 is: 643,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,104.40 : 1,044,156.60 = 428,998.80 : x
  2. Step 2: Convert to fraction form
    696,104.40/1,044,156.60 = 428,998.80/x
  3. Step 3: Cross multiply
    696,104.40x = 1,044,156.60 × 428,998.80
  4. Step 4: Simplify right side
    696,104.40x = 447,941,928,412.08
  5. Step 5: Solve for x
    x = 447,941,928,412.08/696,104.40
  6. Step 6: Final answer
    x = 643,498.20

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Double scale
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Similar ratio
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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.