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Finding the Fourth Proportional to 615,826.87, 849,792.11 and 343,878.54

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Solution

The fourth proportional to 615,826.87, 849,792.11 and 343,878.54 is: 474,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,826.87 : 849,792.11 = 343,878.54 : x
  2. Step 2: Convert to fraction form
    615,826.87/849,792.11 = 343,878.54/x
  3. Step 3: Cross multiply
    615,826.87x = 849,792.11 × 343,878.54
  4. Step 4: Simplify right side
    615,826.87x = 292,225,265,184.21
  5. Step 5: Solve for x
    x = 292,225,265,184.21/615,826.87
  6. Step 6: Final answer
    x = 474,525.03

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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.