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Finding the Fourth Proportional to 452,384.99, 677,543.66 and 215,893.74

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Solution

The fourth proportional to 452,384.99, 677,543.66 and 215,893.74 is: 323,347.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,384.99 : 677,543.66 = 215,893.74 : x
  2. Step 2: Convert to fraction form
    452,384.99/677,543.66 = 215,893.74/x
  3. Step 3: Cross multiply
    452,384.99x = 677,543.66 × 215,893.74
  4. Step 4: Simplify right side
    452,384.99x = 146,277,433,691.22
  5. Step 5: Solve for x
    x = 146,277,433,691.22/452,384.99
  6. Step 6: Final answer
    x = 323,347.23

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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.