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Finding the Fourth Proportional to 850,562.10, 1,275,843.15 and 549,412.20

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Solution

The fourth proportional to 850,562.10, 1,275,843.15 and 549,412.20 is: 824,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,562.10 : 1,275,843.15 = 549,412.20 : x
  2. Step 2: Convert to fraction form
    850,562.10/1,275,843.15 = 549,412.20/x
  3. Step 3: Cross multiply
    850,562.10x = 1,275,843.15 × 549,412.20
  4. Step 4: Simplify right side
    850,562.10x = 700,963,791,896.43
  5. Step 5: Solve for x
    x = 700,963,791,896.43/850,562.10
  6. Step 6: Final answer
    x = 824,118.30

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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.