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Finding the Fourth Proportional to 521,829.98, 783,012.78 and 248,585.64

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Solution

The fourth proportional to 521,829.98, 783,012.78 and 248,585.64 is: 373,006.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,829.98 : 783,012.78 = 248,585.64 : x
  2. Step 2: Convert to fraction form
    521,829.98/783,012.78 = 248,585.64/x
  3. Step 3: Cross multiply
    521,829.98x = 783,012.78 × 248,585.64
  4. Step 4: Simplify right side
    521,829.98x = 194,645,733,044.48
  5. Step 5: Solve for x
    x = 194,645,733,044.48/521,829.98
  6. Step 6: Final answer
    x = 373,006.04

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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.