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Finding the Fourth Proportional to 696,043.84, 960,631.84 and 394,248

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Solution

The fourth proportional to 696,043.84, 960,631.84 and 394,248 is: 544,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,043.84 : 960,631.84 = 394,248 : x
  2. Step 2: Convert to fraction form
    696,043.84/960,631.84 = 394,248/x
  3. Step 3: Cross multiply
    696,043.84x = 960,631.84 × 394,248
  4. Step 4: Simplify right side
    696,043.84x = 378,727,181,656.32
  5. Step 5: Solve for x
    x = 378,727,181,656.32/696,043.84
  6. Step 6: Final answer
    x = 544,113.98

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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.