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Finding the Fourth Proportional to 895,489.60, 1,343,234.40 and 842,958.40

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Solution

The fourth proportional to 895,489.60, 1,343,234.40 and 842,958.40 is: 1,264,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,489.60 : 1,343,234.40 = 842,958.40 : x
  2. Step 2: Convert to fraction form
    895,489.60/1,343,234.40 = 842,958.40/x
  3. Step 3: Cross multiply
    895,489.60x = 1,343,234.40 × 842,958.40
  4. Step 4: Simplify right side
    895,489.60x = 1,132,290,720,648.96
  5. Step 5: Solve for x
    x = 1,132,290,720,648.96/895,489.60
  6. Step 6: Final answer
    x = 1,264,437.60

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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.