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Finding the Fourth Proportional to 368,494.90, 551,856.58 and 210,243.58

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Solution

The fourth proportional to 368,494.90, 551,856.58 and 210,243.58 is: 314,860.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,494.90 : 551,856.58 = 210,243.58 : x
  2. Step 2: Convert to fraction form
    368,494.90/551,856.58 = 210,243.58/x
  3. Step 3: Cross multiply
    368,494.90x = 551,856.58 × 210,243.58
  4. Step 4: Simplify right side
    368,494.90x = 116,024,303,025.76
  5. Step 5: Solve for x
    x = 116,024,303,025.76/368,494.90
  6. Step 6: Final answer
    x = 314,860.00

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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.