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Finding the Fourth Proportional to 319,735.57, 441,235.16 and 176,495.71

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Solution

The fourth proportional to 319,735.57, 441,235.16 and 176,495.71 is: 243,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,735.57 : 441,235.16 = 176,495.71 : x
  2. Step 2: Convert to fraction form
    319,735.57/441,235.16 = 176,495.71/x
  3. Step 3: Cross multiply
    319,735.57x = 441,235.16 × 176,495.71
  4. Step 4: Simplify right side
    319,735.57x = 77,876,111,076.23
  5. Step 5: Solve for x
    x = 77,876,111,076.23/319,735.57
  6. Step 6: Final answer
    x = 243,564.12

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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.