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Finding the Fourth Proportional to 360,064.16, 496,881.60 and 198,920.96

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Solution

The fourth proportional to 360,064.16, 496,881.60 and 198,920.96 is: 274,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,064.16 : 496,881.60 = 198,920.96 : x
  2. Step 2: Convert to fraction form
    360,064.16/496,881.60 = 198,920.96/x
  3. Step 3: Cross multiply
    360,064.16x = 496,881.60 × 198,920.96
  4. Step 4: Simplify right side
    360,064.16x = 98,840,164,878.34
  5. Step 5: Solve for x
    x = 98,840,164,878.34/360,064.16
  6. Step 6: Final answer
    x = 274,507.09

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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.