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Finding the Fourth Proportional to 316,902.69, 437,337.78 and 180,958.77

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Solution

The fourth proportional to 316,902.69, 437,337.78 and 180,958.77 is: 249,729.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,902.69 : 437,337.78 = 180,958.77 : x
  2. Step 2: Convert to fraction form
    316,902.69/437,337.78 = 180,958.77/x
  3. Step 3: Cross multiply
    316,902.69x = 437,337.78 × 180,958.77
  4. Step 4: Simplify right side
    316,902.69x = 79,140,106,743.33
  5. Step 5: Solve for x
    x = 79,140,106,743.33/316,902.69
  6. Step 6: Final answer
    x = 249,729.99

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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.