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Finding the Fourth Proportional to 360,953.76, 498,110.16 and 199,805.40

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Solution

The fourth proportional to 360,953.76, 498,110.16 and 199,805.40 is: 275,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,953.76 : 498,110.16 = 199,805.40 : x
  2. Step 2: Convert to fraction form
    360,953.76/498,110.16 = 199,805.40/x
  3. Step 3: Cross multiply
    360,953.76x = 498,110.16 × 199,805.40
  4. Step 4: Simplify right side
    360,953.76x = 99,525,099,762.86
  5. Step 5: Solve for x
    x = 99,525,099,762.86/360,953.76
  6. Step 6: Final answer
    x = 275,728.11

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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.