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Finding the Fourth Proportional to 406,850.88, 561,254.76 and 353,060.40

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Solution

The fourth proportional to 406,850.88, 561,254.76 and 353,060.40 is: 487,050.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,850.88 : 561,254.76 = 353,060.40 : x
  2. Step 2: Convert to fraction form
    406,850.88/561,254.76 = 353,060.40/x
  3. Step 3: Cross multiply
    406,850.88x = 561,254.76 × 353,060.40
  4. Step 4: Simplify right side
    406,850.88x = 198,156,830,067.50
  5. Step 5: Solve for x
    x = 198,156,830,067.50/406,850.88
  6. Step 6: Final answer
    x = 487,050.27

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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.