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Finding the Fourth Proportional to 334,571.40, 461,070.46 and 328,421.88

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Solution

The fourth proportional to 334,571.40, 461,070.46 and 328,421.88 is: 452,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,571.40 : 461,070.46 = 328,421.88 : x
  2. Step 2: Convert to fraction form
    334,571.40/461,070.46 = 328,421.88/x
  3. Step 3: Cross multiply
    334,571.40x = 461,070.46 × 328,421.88
  4. Step 4: Simplify right side
    334,571.40x = 151,425,627,285.67
  5. Step 5: Solve for x
    x = 151,425,627,285.67/334,571.40
  6. Step 6: Final answer
    x = 452,595.85

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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.