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Finding the Fourth Proportional to 418,518.73, 577,342.93 and 273,409.46

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Solution

The fourth proportional to 418,518.73, 577,342.93 and 273,409.46 is: 377,165.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,518.73 : 577,342.93 = 273,409.46 : x
  2. Step 2: Convert to fraction form
    418,518.73/577,342.93 = 273,409.46/x
  3. Step 3: Cross multiply
    418,518.73x = 577,342.93 × 273,409.46
  4. Step 4: Simplify right side
    418,518.73x = 157,851,017,833.56
  5. Step 5: Solve for x
    x = 157,851,017,833.56/418,518.73
  6. Step 6: Final answer
    x = 377,165.96

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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.