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Finding the Fourth Proportional to 311,555.34, 467,332.83 and 74,897.96

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Solution

The fourth proportional to 311,555.34, 467,332.83 and 74,897.96 is: 112,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,555.34 : 467,332.83 = 74,897.96 : x
  2. Step 2: Convert to fraction form
    311,555.34/467,332.83 = 74,897.96/x
  3. Step 3: Cross multiply
    311,555.34x = 467,332.83 × 74,897.96
  4. Step 4: Simplify right side
    311,555.34x = 35,002,273,271.36
  5. Step 5: Solve for x
    x = 35,002,273,271.36/311,555.34
  6. Step 6: Final answer
    x = 112,346.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.