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Finding the Fourth Proportional to 624,368.01, 933,882.46 and 521,157.31

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Solution

The fourth proportional to 624,368.01, 933,882.46 and 521,157.31 is: 779,507.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,368.01 : 933,882.46 = 521,157.31 : x
  2. Step 2: Convert to fraction form
    624,368.01/933,882.46 = 521,157.31/x
  3. Step 3: Cross multiply
    624,368.01x = 933,882.46 × 521,157.31
  4. Step 4: Simplify right side
    624,368.01x = 486,699,667,072.18
  5. Step 5: Solve for x
    x = 486,699,667,072.18/624,368.01
  6. Step 6: Final answer
    x = 779,507.69

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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.