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Finding the Fourth Proportional to 574,684.51, 861,251.76 and 290,575.51

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Solution

The fourth proportional to 574,684.51, 861,251.76 and 290,575.51 is: 435,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,684.51 : 861,251.76 = 290,575.51 : x
  2. Step 2: Convert to fraction form
    574,684.51/861,251.76 = 290,575.51/x
  3. Step 3: Cross multiply
    574,684.51x = 861,251.76 × 290,575.51
  4. Step 4: Simplify right side
    574,684.51x = 250,258,669,400.40
  5. Step 5: Solve for x
    x = 250,258,669,400.40/574,684.51
  6. Step 6: Final answer
    x = 435,471.40

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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.