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Finding the Fourth Proportional to 349,969.40, 524,954.10 and 242,660.60

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Solution

The fourth proportional to 349,969.40, 524,954.10 and 242,660.60 is: 363,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,969.40 : 524,954.10 = 242,660.60 : x
  2. Step 2: Convert to fraction form
    349,969.40/524,954.10 = 242,660.60/x
  3. Step 3: Cross multiply
    349,969.40x = 524,954.10 × 242,660.60
  4. Step 4: Simplify right side
    349,969.40x = 127,385,676,878.46
  5. Step 5: Solve for x
    x = 127,385,676,878.46/349,969.40
  6. Step 6: Final answer
    x = 363,990.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.