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Finding the Fourth Proportional to 822,071.71, 1,134,482.87 and 449,556.54

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Solution

The fourth proportional to 822,071.71, 1,134,482.87 and 449,556.54 is: 620,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,071.71 : 1,134,482.87 = 449,556.54 : x
  2. Step 2: Convert to fraction form
    822,071.71/1,134,482.87 = 449,556.54/x
  3. Step 3: Cross multiply
    822,071.71x = 1,134,482.87 × 449,556.54
  4. Step 4: Simplify right side
    822,071.71x = 510,014,187,224.38
  5. Step 5: Solve for x
    x = 510,014,187,224.38/822,071.71
  6. Step 6: Final answer
    x = 620,401.09

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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.