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Finding the Fourth Proportional to 647,864.20, 972,233.70 and 363,554.20

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Solution

The fourth proportional to 647,864.20, 972,233.70 and 363,554.20 is: 545,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,864.20 : 972,233.70 = 363,554.20 : x
  2. Step 2: Convert to fraction form
    647,864.20/972,233.70 = 363,554.20/x
  3. Step 3: Cross multiply
    647,864.20x = 972,233.70 × 363,554.20
  4. Step 4: Simplify right side
    647,864.20x = 353,459,645,016.54
  5. Step 5: Solve for x
    x = 353,459,645,016.54/647,864.20
  6. Step 6: Final answer
    x = 545,576.75

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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.