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Finding the Fourth Proportional to 768,169.64, 1,059,915.86 and 441,419.54

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Solution

The fourth proportional to 768,169.64, 1,059,915.86 and 441,419.54 is: 609,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,169.64 : 1,059,915.86 = 441,419.54 : x
  2. Step 2: Convert to fraction form
    768,169.64/1,059,915.86 = 441,419.54/x
  3. Step 3: Cross multiply
    768,169.64x = 1,059,915.86 × 441,419.54
  4. Step 4: Simplify right side
    768,169.64x = 467,867,569,152.81
  5. Step 5: Solve for x
    x = 467,867,569,152.81/768,169.64
  6. Step 6: Final answer
    x = 609,068.03

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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.