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Finding the Fourth Proportional to 445,595.31, 614,913.12 and 251,999.64

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Solution

The fourth proportional to 445,595.31, 614,913.12 and 251,999.64 is: 347,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,595.31 : 614,913.12 = 251,999.64 : x
  2. Step 2: Convert to fraction form
    445,595.31/614,913.12 = 251,999.64/x
  3. Step 3: Cross multiply
    445,595.31x = 614,913.12 × 251,999.64
  4. Step 4: Simplify right side
    445,595.31x = 154,957,884,871.28
  5. Step 5: Solve for x
    x = 154,957,884,871.28/445,595.31
  6. Step 6: Final answer
    x = 347,754.75

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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.