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Finding the Fourth Proportional to 265,984,604.80, 398,305,060.80 and 174,613,494.40

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Solution

The fourth proportional to 265,984,604.80, 398,305,060.80 and 174,613,494.40 is: 261,479,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,984,604.80 : 398,305,060.80 = 174,613,494.40 : x
  2. Step 2: Convert to fraction form
    265,984,604.80/398,305,060.80 = 174,613,494.40/x
  3. Step 3: Cross multiply
    265,984,604.80x = 398,305,060.80 × 174,613,494.40
  4. Step 4: Simplify right side
    265,984,604.80x = 69,549,438,503,492,464
  5. Step 5: Solve for x
    x = 69,549,438,503,492,464/265,984,604.80
  6. Step 6: Final answer
    x = 261,479,188.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.