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Finding the Fourth Proportional to 370,549.94, 511,362.92 and 217,589.95

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Solution

The fourth proportional to 370,549.94, 511,362.92 and 217,589.95 is: 300,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,549.94 : 511,362.92 = 217,589.95 : x
  2. Step 2: Convert to fraction form
    370,549.94/511,362.92 = 217,589.95/x
  3. Step 3: Cross multiply
    370,549.94x = 511,362.92 × 217,589.95
  4. Step 4: Simplify right side
    370,549.94x = 111,267,430,501.42
  5. Step 5: Solve for x
    x = 111,267,430,501.42/370,549.94
  6. Step 6: Final answer
    x = 300,276.48

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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.