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Finding the Fourth Proportional to 301,678.79, 452,518.11 and 77,031.27

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Solution

The fourth proportional to 301,678.79, 452,518.11 and 77,031.27 is: 115,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,678.79 : 452,518.11 = 77,031.27 : x
  2. Step 2: Convert to fraction form
    301,678.79/452,518.11 = 77,031.27/x
  3. Step 3: Cross multiply
    301,678.79x = 452,518.11 × 77,031.27
  4. Step 4: Simplify right side
    301,678.79x = 34,858,044,711.30
  5. Step 5: Solve for x
    x = 34,858,044,711.30/301,678.79
  6. Step 6: Final answer
    x = 115,546.89

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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.