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Finding the Fourth Proportional to 429,055.84, 589,997.48 and 372,368.80

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Solution

The fourth proportional to 429,055.84, 589,997.48 and 372,368.80 is: 512,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,055.84 : 589,997.48 = 372,368.80 : x
  2. Step 2: Convert to fraction form
    429,055.84/589,997.48 = 372,368.80/x
  3. Step 3: Cross multiply
    429,055.84x = 589,997.48 × 372,368.80
  4. Step 4: Simplify right side
    429,055.84x = 219,696,653,630.62
  5. Step 5: Solve for x
    x = 219,696,653,630.62/429,055.84
  6. Step 6: Final answer
    x = 512,046.76

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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.