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Finding the Fourth Proportional to 468,064.20, 702,096.30 and 438,539.70

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Solution

The fourth proportional to 468,064.20, 702,096.30 and 438,539.70 is: 657,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,064.20 : 702,096.30 = 438,539.70 : x
  2. Step 2: Convert to fraction form
    468,064.20/702,096.30 = 438,539.70/x
  3. Step 3: Cross multiply
    468,064.20x = 702,096.30 × 438,539.70
  4. Step 4: Simplify right side
    468,064.20x = 307,897,100,773.11
  5. Step 5: Solve for x
    x = 307,897,100,773.11/468,064.20
  6. Step 6: Final answer
    x = 657,809.55

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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.