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Finding the Fourth Proportional to 705,523.68, 973,572.48 and 399,630.96

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Solution

The fourth proportional to 705,523.68, 973,572.48 and 399,630.96 is: 551,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,523.68 : 973,572.48 = 399,630.96 : x
  2. Step 2: Convert to fraction form
    705,523.68/973,572.48 = 399,630.96/x
  3. Step 3: Cross multiply
    705,523.68x = 973,572.48 × 399,630.96
  4. Step 4: Simplify right side
    705,523.68x = 389,069,704,811.98
  5. Step 5: Solve for x
    x = 389,069,704,811.98/705,523.68
  6. Step 6: Final answer
    x = 551,462.29

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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.