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Finding the Fourth Proportional to 545,703.20, 753,093.11 and 303,985.71

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Solution

The fourth proportional to 545,703.20, 753,093.11 and 303,985.71 is: 419,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,703.20 : 753,093.11 = 303,985.71 : x
  2. Step 2: Convert to fraction form
    545,703.20/753,093.11 = 303,985.71/x
  3. Step 3: Cross multiply
    545,703.20x = 753,093.11 × 303,985.71
  4. Step 4: Simplify right side
    545,703.20x = 228,929,543,216.98
  5. Step 5: Solve for x
    x = 228,929,543,216.98/545,703.20
  6. Step 6: Final answer
    x = 419,512.92

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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.