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Finding the Fourth Proportional to 610,817.67, 842,899.95 and 338,882.67

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Solution

The fourth proportional to 610,817.67, 842,899.95 and 338,882.67 is: 467,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,817.67 : 842,899.95 = 338,882.67 : x
  2. Step 2: Convert to fraction form
    610,817.67/842,899.95 = 338,882.67/x
  3. Step 3: Cross multiply
    610,817.67x = 842,899.95 × 338,882.67
  4. Step 4: Simplify right side
    610,817.67x = 285,644,185,598.87
  5. Step 5: Solve for x
    x = 285,644,185,598.87/610,817.67
  6. Step 6: Final answer
    x = 467,642.31

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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.