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Finding the Fourth Proportional to 299,287.40, 448,931.10 and 246,143.30

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Solution

The fourth proportional to 299,287.40, 448,931.10 and 246,143.30 is: 369,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,287.40 : 448,931.10 = 246,143.30 : x
  2. Step 2: Convert to fraction form
    299,287.40/448,931.10 = 246,143.30/x
  3. Step 3: Cross multiply
    299,287.40x = 448,931.10 × 246,143.30
  4. Step 4: Simplify right side
    299,287.40x = 110,501,382,426.63
  5. Step 5: Solve for x
    x = 110,501,382,426.63/299,287.40
  6. Step 6: Final answer
    x = 369,214.95

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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.