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Finding the Fourth Proportional to 374,953.80, 517,434.30 and 205,190.76

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Solution

The fourth proportional to 374,953.80, 517,434.30 and 205,190.76 is: 283,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,953.80 : 517,434.30 = 205,190.76 : x
  2. Step 2: Convert to fraction form
    374,953.80/517,434.30 = 205,190.76/x
  3. Step 3: Cross multiply
    374,953.80x = 517,434.30 × 205,190.76
  4. Step 4: Simplify right side
    374,953.80x = 106,172,737,267.07
  5. Step 5: Solve for x
    x = 106,172,737,267.07/374,953.80
  6. Step 6: Final answer
    x = 283,162.18

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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.