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Finding the Fourth Proportional to 416,930.46, 575,562.42 and 279,346.32

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Solution

The fourth proportional to 416,930.46, 575,562.42 and 279,346.32 is: 385,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,930.46 : 575,562.42 = 279,346.32 : x
  2. Step 2: Convert to fraction form
    416,930.46/575,562.42 = 279,346.32/x
  3. Step 3: Cross multiply
    416,930.46x = 575,562.42 × 279,346.32
  4. Step 4: Simplify right side
    416,930.46x = 160,781,243,957.29
  5. Step 5: Solve for x
    x = 160,781,243,957.29/416,930.46
  6. Step 6: Final answer
    x = 385,630.84

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1.5x scale

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.