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Finding the Fourth Proportional to 580,602.78, 801,187.65 and 325,904.76

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Solution

The fourth proportional to 580,602.78, 801,187.65 and 325,904.76 is: 449,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,602.78 : 801,187.65 = 325,904.76 : x
  2. Step 2: Convert to fraction form
    580,602.78/801,187.65 = 325,904.76/x
  3. Step 3: Cross multiply
    580,602.78x = 801,187.65 × 325,904.76
  4. Step 4: Simplify right side
    580,602.78x = 261,110,868,788.21
  5. Step 5: Solve for x
    x = 261,110,868,788.21/580,602.78
  6. Step 6: Final answer
    x = 449,723.77

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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.