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Finding the Fourth Proportional to 616,106.80, 923,760.60 and 261,024.40

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Solution

The fourth proportional to 616,106.80, 923,760.60 and 261,024.40 is: 391,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,106.80 : 923,760.60 = 261,024.40 : x
  2. Step 2: Convert to fraction form
    616,106.80/923,760.60 = 261,024.40/x
  3. Step 3: Cross multiply
    616,106.80x = 923,760.60 × 261,024.40
  4. Step 4: Simplify right side
    616,106.80x = 241,124,056,358.64
  5. Step 5: Solve for x
    x = 241,124,056,358.64/616,106.80
  6. Step 6: Final answer
    x = 391,367.30

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1.5x scale

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.