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Finding the Fourth Proportional to 571,259.03, 788,421.38 and 329,494.37

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Solution

The fourth proportional to 571,259.03, 788,421.38 and 329,494.37 is: 454,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,259.03 : 788,421.38 = 329,494.37 : x
  2. Step 2: Convert to fraction form
    571,259.03/788,421.38 = 329,494.37/x
  3. Step 3: Cross multiply
    571,259.03x = 788,421.38 × 329,494.37
  4. Step 4: Simplify right side
    571,259.03x = 259,780,400,308.05
  5. Step 5: Solve for x
    x = 259,780,400,308.05/571,259.03
  6. Step 6: Final answer
    x = 454,750.63

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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.