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Finding the Fourth Proportional to 368,504.83, 508,547.98 and 200,685.15

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Solution

The fourth proportional to 368,504.83, 508,547.98 and 200,685.15 is: 276,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,504.83 : 508,547.98 = 200,685.15 : x
  2. Step 2: Convert to fraction form
    368,504.83/508,547.98 = 200,685.15/x
  3. Step 3: Cross multiply
    368,504.83x = 508,547.98 × 200,685.15
  4. Step 4: Simplify right side
    368,504.83x = 102,058,026,596.79
  5. Step 5: Solve for x
    x = 102,058,026,596.79/368,504.83
  6. Step 6: Final answer
    x = 276,951.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.