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Finding the Fourth Proportional to 875,885.60, 1,313,420.04 and 455,048.48

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Solution

The fourth proportional to 875,885.60, 1,313,420.04 and 455,048.48 is: 682,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,885.60 : 1,313,420.04 = 455,048.48 : x
  2. Step 2: Convert to fraction form
    875,885.60/1,313,420.04 = 455,048.48/x
  3. Step 3: Cross multiply
    875,885.60x = 1,313,420.04 × 455,048.48
  4. Step 4: Simplify right side
    875,885.60x = 597,669,792,803.54
  5. Step 5: Solve for x
    x = 597,669,792,803.54/875,885.60
  6. Step 6: Final answer
    x = 682,360.56

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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.