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Finding the Fourth Proportional to 496,961.20, 744,563.40 and 480,516.40

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Solution

The fourth proportional to 496,961.20, 744,563.40 and 480,516.40 is: 719,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,961.20 : 744,563.40 = 480,516.40 : x
  2. Step 2: Convert to fraction form
    496,961.20/744,563.40 = 480,516.40/x
  3. Step 3: Cross multiply
    496,961.20x = 744,563.40 × 480,516.40
  4. Step 4: Simplify right side
    496,961.20x = 357,774,924,539.76
  5. Step 5: Solve for x
    x = 357,774,924,539.76/496,961.20
  6. Step 6: Final answer
    x = 719,925.27

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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.