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Finding the Fourth Proportional to 468,442.40, 702,558.38 and 215,479.94

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Solution

The fourth proportional to 468,442.40, 702,558.38 and 215,479.94 is: 323,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,442.40 : 702,558.38 = 215,479.94 : x
  2. Step 2: Convert to fraction form
    468,442.40/702,558.38 = 215,479.94/x
  3. Step 3: Cross multiply
    468,442.40x = 702,558.38 × 215,479.94
  4. Step 4: Simplify right side
    468,442.40x = 151,387,232,978.71
  5. Step 5: Solve for x
    x = 151,387,232,978.71/468,442.40
  6. Step 6: Final answer
    x = 323,171.50

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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.