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Finding the Fourth Proportional to 316,716.62, 437,072.55 and 180,768.92

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Solution

The fourth proportional to 316,716.62, 437,072.55 and 180,768.92 is: 249,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,716.62 : 437,072.55 = 180,768.92 : x
  2. Step 2: Convert to fraction form
    316,716.62/437,072.55 = 180,768.92/x
  3. Step 3: Cross multiply
    316,716.62x = 437,072.55 × 180,768.92
  4. Step 4: Simplify right side
    316,716.62x = 79,009,132,825.15
  5. Step 5: Solve for x
    x = 79,009,132,825.15/316,716.62
  6. Step 6: Final answer
    x = 249,463.17

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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.