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Finding the Fourth Proportional to 958,505.40, 1,436,537.03 and 509,441.40

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Solution

The fourth proportional to 958,505.40, 1,436,537.03 and 509,441.40 is: 763,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,505.40 : 1,436,537.03 = 509,441.40 : x
  2. Step 2: Convert to fraction form
    958,505.40/1,436,537.03 = 509,441.40/x
  3. Step 3: Cross multiply
    958,505.40x = 1,436,537.03 × 509,441.40
  4. Step 4: Simplify right side
    958,505.40x = 731,831,433,167.84
  5. Step 5: Solve for x
    x = 731,831,433,167.84/958,505.40
  6. Step 6: Final answer
    x = 763,513.10

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1.5x scale

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.