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Finding the Fourth Proportional to 656,755.56, 983,707.68 and 403,266.60

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Solution

The fourth proportional to 656,755.56, 983,707.68 and 403,266.60 is: 604,024.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,755.56 : 983,707.68 = 403,266.60 : x
  2. Step 2: Convert to fraction form
    656,755.56/983,707.68 = 403,266.60/x
  3. Step 3: Cross multiply
    656,755.56x = 983,707.68 × 403,266.60
  4. Step 4: Simplify right side
    656,755.56x = 396,696,451,507.49
  5. Step 5: Solve for x
    x = 396,696,451,507.49/656,755.56
  6. Step 6: Final answer
    x = 604,024.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.