Home / 721,579.69-995,885.58-415,597.23

Finding the Fourth Proportional to 721,579.69, 995,885.58 and 415,597.23

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Solution

The fourth proportional to 721,579.69, 995,885.58 and 415,597.23 is: 573,585.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,579.69 : 995,885.58 = 415,597.23 : x
  2. Step 2: Convert to fraction form
    721,579.69/995,885.58 = 415,597.23/x
  3. Step 3: Cross multiply
    721,579.69x = 995,885.58 × 415,597.23
  4. Step 4: Simplify right side
    721,579.69x = 413,887,290,003.43
  5. Step 5: Solve for x
    x = 413,887,290,003.43/721,579.69
  6. Step 6: Final answer
    x = 573,585.00

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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.