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Finding the Fourth Proportional to 626,163, 864,104.94 and 357,896.76

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Solution

The fourth proportional to 626,163, 864,104.94 and 357,896.76 is: 493,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,163 : 864,104.94 = 357,896.76 : x
  2. Step 2: Convert to fraction form
    626,163/864,104.94 = 357,896.76/x
  3. Step 3: Cross multiply
    626,163x = 864,104.94 × 357,896.76
  4. Step 4: Simplify right side
    626,163x = 309,260,358,325.99
  5. Step 5: Solve for x
    x = 309,260,358,325.99/626,163
  6. Step 6: Final answer
    x = 493,897.53

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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.