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Finding the Fourth Proportional to 875,608.80, 1,313,452.56 and 268,352.64

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Solution

The fourth proportional to 875,608.80, 1,313,452.56 and 268,352.64 is: 402,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,608.80 : 1,313,452.56 = 268,352.64 : x
  2. Step 2: Convert to fraction form
    875,608.80/1,313,452.56 = 268,352.64/x
  3. Step 3: Cross multiply
    875,608.80x = 1,313,452.56 × 268,352.64
  4. Step 4: Simplify right side
    875,608.80x = 352,468,461,990.76
  5. Step 5: Solve for x
    x = 352,468,461,990.76/875,608.80
  6. Step 6: Final answer
    x = 402,541.02

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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.