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Finding the Fourth Proportional to 705,675.96, 973,892.12 and 399,849.57

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Solution

The fourth proportional to 705,675.96, 973,892.12 and 399,849.57 is: 551,826.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,675.96 : 973,892.12 = 399,849.57 : x
  2. Step 2: Convert to fraction form
    705,675.96/973,892.12 = 399,849.57/x
  3. Step 3: Cross multiply
    705,675.96x = 973,892.12 × 399,849.57
  4. Step 4: Simplify right side
    705,675.96x = 389,410,343,409.14
  5. Step 5: Solve for x
    x = 389,410,343,409.14/705,675.96
  6. Step 6: Final answer
    x = 551,826.00

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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.