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Finding the Fourth Proportional to 624,369.01, 933,883.95 and 521,158.31

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Solution

The fourth proportional to 624,369.01, 933,883.95 and 521,158.31 is: 779,509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,369.01 : 933,883.95 = 521,158.31 : x
  2. Step 2: Convert to fraction form
    624,369.01/933,883.95 = 521,158.31/x
  3. Step 3: Cross multiply
    624,369.01x = 933,883.95 × 521,158.31
  4. Step 4: Simplify right side
    624,369.01x = 486,701,381,118.12
  5. Step 5: Solve for x
    x = 486,701,381,118.12/624,369.01
  6. Step 6: Final answer
    x = 779,509.19

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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.