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Finding the Fourth Proportional to 615,954.47, 923,771.33 and 260,785.67

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Solution

The fourth proportional to 615,954.47, 923,771.33 and 260,785.67 is: 391,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,954.47 : 923,771.33 = 260,785.67 : x
  2. Step 2: Convert to fraction form
    615,954.47/923,771.33 = 260,785.67/x
  3. Step 3: Cross multiply
    615,954.47x = 923,771.33 × 260,785.67
  4. Step 4: Simplify right side
    615,954.47x = 240,906,323,916.91
  5. Step 5: Solve for x
    x = 240,906,323,916.91/615,954.47
  6. Step 6: Final answer
    x = 391,110.60

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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.