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Finding the Fourth Proportional to 539,072.01, 744,158.49 and 348,178.50

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Solution

The fourth proportional to 539,072.01, 744,158.49 and 348,178.50 is: 480,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,072.01 : 744,158.49 = 348,178.50 : x
  2. Step 2: Convert to fraction form
    539,072.01/744,158.49 = 348,178.50/x
  3. Step 3: Cross multiply
    539,072.01x = 744,158.49 × 348,178.50
  4. Step 4: Simplify right side
    539,072.01x = 259,099,986,810.47
  5. Step 5: Solve for x
    x = 259,099,986,810.47/539,072.01
  6. Step 6: Final answer
    x = 480,640.77

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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.