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Finding the Fourth Proportional to 618,081.76, 925,945.98 and 352,025.92

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Solution

The fourth proportional to 618,081.76, 925,945.98 and 352,025.92 is: 527,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,081.76 : 925,945.98 = 352,025.92 : x
  2. Step 2: Convert to fraction form
    618,081.76/925,945.98 = 352,025.92/x
  3. Step 3: Cross multiply
    618,081.76x = 925,945.98 × 352,025.92
  4. Step 4: Simplify right side
    618,081.76x = 325,956,985,479.80
  5. Step 5: Solve for x
    x = 325,956,985,479.80/618,081.76
  6. Step 6: Final answer
    x = 527,368.72

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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.