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Finding the Fourth Proportional to 368,585.56, 508,664.45 and 207,451.05

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Solution

The fourth proportional to 368,585.56, 508,664.45 and 207,451.05 is: 286,291.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,585.56 : 508,664.45 = 207,451.05 : x
  2. Step 2: Convert to fraction form
    368,585.56/508,664.45 = 207,451.05/x
  3. Step 3: Cross multiply
    368,585.56x = 508,664.45 × 207,451.05
  4. Step 4: Simplify right side
    368,585.56x = 105,522,974,250.17
  5. Step 5: Solve for x
    x = 105,522,974,250.17/368,585.56
  6. Step 6: Final answer
    x = 286,291.67

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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.