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Finding the Fourth Proportional to 676,770, 933,942.47 and 404,849.36

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Solution

The fourth proportional to 676,770, 933,942.47 and 404,849.36 is: 558,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,770 : 933,942.47 = 404,849.36 : x
  2. Step 2: Convert to fraction form
    676,770/933,942.47 = 404,849.36/x
  3. Step 3: Cross multiply
    676,770x = 933,942.47 × 404,849.36
  4. Step 4: Simplify right side
    676,770x = 378,106,011,256.32
  5. Step 5: Solve for x
    x = 378,106,011,256.32/676,770
  6. Step 6: Final answer
    x = 558,692.04

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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.