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Finding the Fourth Proportional to 615,955.47, 923,772.82 and 260,786.67

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Solution

The fourth proportional to 615,955.47, 923,772.82 and 260,786.67 is: 391,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,955.47 : 923,772.82 = 260,786.67 : x
  2. Step 2: Convert to fraction form
    615,955.47/923,772.82 = 260,786.67/x
  3. Step 3: Cross multiply
    615,955.47x = 923,772.82 × 260,786.67
  4. Step 4: Simplify right side
    615,955.47x = 240,907,637,564.31
  5. Step 5: Solve for x
    x = 240,907,637,564.31/615,955.47
  6. Step 6: Final answer
    x = 391,112.10

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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.