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Finding the Fourth Proportional to 405,985.94, 560,312.94 and 244,927.97

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Solution

The fourth proportional to 405,985.94, 560,312.94 and 244,927.97 is: 338,032.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985.94 : 560,312.94 = 244,927.97 : x
  2. Step 2: Convert to fraction form
    405,985.94/560,312.94 = 244,927.97/x
  3. Step 3: Cross multiply
    405,985.94x = 560,312.94 × 244,927.97
  4. Step 4: Simplify right side
    405,985.94x = 137,236,310,958.93
  5. Step 5: Solve for x
    x = 137,236,310,958.93/405,985.94
  6. Step 6: Final answer
    x = 338,032.18

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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.