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Finding the Fourth Proportional to 613,817.53, 846,774.83 and 476,914.58

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Solution

The fourth proportional to 613,817.53, 846,774.83 and 476,914.58 is: 657,914.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,817.53 : 846,774.83 = 476,914.58 : x
  2. Step 2: Convert to fraction form
    613,817.53/846,774.83 = 476,914.58/x
  3. Step 3: Cross multiply
    613,817.53x = 846,774.83 × 476,914.58
  4. Step 4: Simplify right side
    613,817.53x = 403,839,258,960.98
  5. Step 5: Solve for x
    x = 403,839,258,960.98/613,817.53
  6. Step 6: Final answer
    x = 657,914.18

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1.5x scale

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.