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Finding the Fourth Proportional to 511,806.96, 705,927.96 and 443,702.16

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Solution

The fourth proportional to 511,806.96, 705,927.96 and 443,702.16 is: 611,991.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,806.96 : 705,927.96 = 443,702.16 : x
  2. Step 2: Convert to fraction form
    511,806.96/705,927.96 = 443,702.16/x
  3. Step 3: Cross multiply
    511,806.96x = 705,927.96 × 443,702.16
  4. Step 4: Simplify right side
    511,806.96x = 313,221,760,656.39
  5. Step 5: Solve for x
    x = 313,221,760,656.39/511,806.96
  6. Step 6: Final answer
    x = 611,991.99

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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.