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Finding the Fourth Proportional to 656,557.76, 906,037.04 and 370,072.32

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Solution

The fourth proportional to 656,557.76, 906,037.04 and 370,072.32 is: 510,692.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,557.76 : 906,037.04 = 370,072.32 : x
  2. Step 2: Convert to fraction form
    656,557.76/906,037.04 = 370,072.32/x
  3. Step 3: Cross multiply
    656,557.76x = 906,037.04 × 370,072.32
  4. Step 4: Simplify right side
    656,557.76x = 335,299,229,398.73
  5. Step 5: Solve for x
    x = 335,299,229,398.73/656,557.76
  6. Step 6: Final answer
    x = 510,692.66

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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.