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Finding the Fourth Proportional to 778,808.22, 1,074,769.34 and 456,750.60

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Solution

The fourth proportional to 778,808.22, 1,074,769.34 and 456,750.60 is: 630,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,808.22 : 1,074,769.34 = 456,750.60 : x
  2. Step 2: Convert to fraction form
    778,808.22/1,074,769.34 = 456,750.60/x
  3. Step 3: Cross multiply
    778,808.22x = 1,074,769.34 × 456,750.60
  4. Step 4: Simplify right side
    778,808.22x = 490,901,538,320.47
  5. Step 5: Solve for x
    x = 490,901,538,320.47/778,808.22
  6. Step 6: Final answer
    x = 630,324.03

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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.