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Finding the Fourth Proportional to 319,846.72, 441,405.76 and 176,606.32

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Solution

The fourth proportional to 319,846.72, 441,405.76 and 176,606.32 is: 243,726.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,846.72 : 441,405.76 = 176,606.32 : x
  2. Step 2: Convert to fraction form
    319,846.72/441,405.76 = 176,606.32/x
  3. Step 3: Cross multiply
    319,846.72x = 441,405.76 × 176,606.32
  4. Step 4: Simplify right side
    319,846.72x = 77,955,046,900.40
  5. Step 5: Solve for x
    x = 77,955,046,900.40/319,846.72
  6. Step 6: Final answer
    x = 243,726.27

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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.