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Finding the Fourth Proportional to 531,155.52, 732,976.02 and 298,575.36

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Solution

The fourth proportional to 531,155.52, 732,976.02 and 298,575.36 is: 412,023.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,155.52 : 732,976.02 = 298,575.36 : x
  2. Step 2: Convert to fraction form
    531,155.52/732,976.02 = 298,575.36/x
  3. Step 3: Cross multiply
    531,155.52x = 732,976.02 × 298,575.36
  4. Step 4: Simplify right side
    531,155.52x = 218,848,579,042.87
  5. Step 5: Solve for x
    x = 218,848,579,042.87/531,155.52
  6. Step 6: Final answer
    x = 412,023.54

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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.