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Finding the Fourth Proportional to 360,117.76, 496,949.16 and 198,969.34

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Solution

The fourth proportional to 360,117.76, 496,949.16 and 198,969.34 is: 274,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,117.76 : 496,949.16 = 198,969.34 : x
  2. Step 2: Convert to fraction form
    360,117.76/496,949.16 = 198,969.34/x
  3. Step 3: Cross multiply
    360,117.76x = 496,949.16 × 198,969.34
  4. Step 4: Simplify right side
    360,117.76x = 98,877,646,378.75
  5. Step 5: Solve for x
    x = 98,877,646,378.75/360,117.76
  6. Step 6: Final answer
    x = 274,570.31

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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.