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Finding the Fourth Proportional to 519,000.80, 779,084.40 and 401,194.40

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Solution

The fourth proportional to 519,000.80, 779,084.40 and 401,194.40 is: 602,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,000.80 : 779,084.40 = 401,194.40 : x
  2. Step 2: Convert to fraction form
    519,000.80/779,084.40 = 401,194.40/x
  3. Step 3: Cross multiply
    519,000.80x = 779,084.40 × 401,194.40
  4. Step 4: Simplify right side
    519,000.80x = 312,564,298,407.36
  5. Step 5: Solve for x
    x = 312,564,298,407.36/519,000.80
  6. Step 6: Final answer
    x = 602,242.42

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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.