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Finding the Fourth Proportional to 547,986.17, 821,979.39 and 358,606.01

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Solution

The fourth proportional to 547,986.17, 821,979.39 and 358,606.01 is: 537,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,986.17 : 821,979.39 = 358,606.01 : x
  2. Step 2: Convert to fraction form
    547,986.17/821,979.39 = 358,606.01/x
  3. Step 3: Cross multiply
    547,986.17x = 821,979.39 × 358,606.01
  4. Step 4: Simplify right side
    547,986.17x = 294,766,749,350.13
  5. Step 5: Solve for x
    x = 294,766,749,350.13/547,986.17
  6. Step 6: Final answer
    x = 537,909.10

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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.