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Finding the Fourth Proportional to 474,740.47, 655,141.80 and 259,880.68

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Solution

The fourth proportional to 474,740.47, 655,141.80 and 259,880.68 is: 358,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,740.47 : 655,141.80 = 259,880.68 : x
  2. Step 2: Convert to fraction form
    474,740.47/655,141.80 = 259,880.68/x
  3. Step 3: Cross multiply
    474,740.47x = 655,141.80 × 259,880.68
  4. Step 4: Simplify right side
    474,740.47x = 170,258,696,480.42
  5. Step 5: Solve for x
    x = 170,258,696,480.42/474,740.47
  6. Step 6: Final answer
    x = 358,635.31

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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.