Home / 657,037.60-985,556.40-420,841.60

Finding the Fourth Proportional to 657,037.60, 985,556.40 and 420,841.60

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Solution

The fourth proportional to 657,037.60, 985,556.40 and 420,841.60 is: 631,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,037.60 : 985,556.40 = 420,841.60 : x
  2. Step 2: Convert to fraction form
    657,037.60/985,556.40 = 420,841.60/x
  3. Step 3: Cross multiply
    657,037.60x = 985,556.40 × 420,841.60
  4. Step 4: Simplify right side
    657,037.60x = 414,763,132,266.24
  5. Step 5: Solve for x
    x = 414,763,132,266.24/657,037.60
  6. Step 6: Final answer
    x = 631,262.40

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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.