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Finding the Fourth Proportional to 519,481.52, 716,877.54 and 290,042.34

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Solution

The fourth proportional to 519,481.52, 716,877.54 and 290,042.34 is: 400,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,481.52 : 716,877.54 = 290,042.34 : x
  2. Step 2: Convert to fraction form
    519,481.52/716,877.54 = 290,042.34/x
  3. Step 3: Cross multiply
    519,481.52x = 716,877.54 × 290,042.34
  4. Step 4: Simplify right side
    519,481.52x = 207,924,839,195.04
  5. Step 5: Solve for x
    x = 207,924,839,195.04/519,481.52
  6. Step 6: Final answer
    x = 400,254.54

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1.5x scale

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.