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Finding the Fourth Proportional to 411,079.68, 567,258.54 and 249,912.36

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Solution

The fourth proportional to 411,079.68, 567,258.54 and 249,912.36 is: 344,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,079.68 : 567,258.54 = 249,912.36 : x
  2. Step 2: Convert to fraction form
    411,079.68/567,258.54 = 249,912.36/x
  3. Step 3: Cross multiply
    411,079.68x = 567,258.54 × 249,912.36
  4. Step 4: Simplify right side
    411,079.68x = 141,764,920,461.55
  5. Step 5: Solve for x
    x = 141,764,920,461.55/411,079.68
  6. Step 6: Final answer
    x = 344,859.96

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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.