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Finding the Fourth Proportional to 345,649.16, 477,024.24 and 190,630.77

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Solution

The fourth proportional to 345,649.16, 477,024.24 and 190,630.77 is: 263,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,649.16 : 477,024.24 = 190,630.77 : x
  2. Step 2: Convert to fraction form
    345,649.16/477,024.24 = 190,630.77/x
  3. Step 3: Cross multiply
    345,649.16x = 477,024.24 × 190,630.77
  4. Step 4: Simplify right side
    345,649.16x = 90,935,498,179.86
  5. Step 5: Solve for x
    x = 90,935,498,179.86/345,649.16
  6. Step 6: Final answer
    x = 263,086.13

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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.