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Finding the Fourth Proportional to 316,768.25, 437,171.51 and 180,822.65

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Solution

The fourth proportional to 316,768.25, 437,171.51 and 180,822.65 is: 249,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,768.25 : 437,171.51 = 180,822.65 : x
  2. Step 2: Convert to fraction form
    316,768.25/437,171.51 = 180,822.65/x
  3. Step 3: Cross multiply
    316,768.25x = 437,171.51 × 180,822.65
  4. Step 4: Simplify right side
    316,768.25x = 79,050,509,208.90
  5. Step 5: Solve for x
    x = 79,050,509,208.90/316,768.25
  6. Step 6: Final answer
    x = 249,553.13

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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.