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Finding the Fourth Proportional to 676,628.46, 933,748 and 366,531.76

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Solution

The fourth proportional to 676,628.46, 933,748 and 366,531.76 is: 505,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,628.46 : 933,748 = 366,531.76 : x
  2. Step 2: Convert to fraction form
    676,628.46/933,748 = 366,531.76/x
  3. Step 3: Cross multiply
    676,628.46x = 933,748 × 366,531.76
  4. Step 4: Simplify right side
    676,628.46x = 342,248,297,836.48
  5. Step 5: Solve for x
    x = 342,248,297,836.48/676,628.46
  6. Step 6: Final answer
    x = 505,814.22

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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.