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Finding the Fourth Proportional to 319,935, 441,510.30 and 185,807.64

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Solution

The fourth proportional to 319,935, 441,510.30 and 185,807.64 is: 256,414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,935 : 441,510.30 = 185,807.64 : x
  2. Step 2: Convert to fraction form
    319,935/441,510.30 = 185,807.64/x
  3. Step 3: Cross multiply
    319,935x = 441,510.30 × 185,807.64
  4. Step 4: Simplify right side
    319,935x = 82,035,986,878.69
  5. Step 5: Solve for x
    x = 82,035,986,878.69/319,935
  6. Step 6: Final answer
    x = 256,414.54

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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.