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Finding the Fourth Proportional to 695,650.45, 959,995.50 and 385,572.84

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Solution

The fourth proportional to 695,650.45, 959,995.50 and 385,572.84 is: 532,089.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,650.45 : 959,995.50 = 385,572.84 : x
  2. Step 2: Convert to fraction form
    695,650.45/959,995.50 = 385,572.84/x
  3. Step 3: Cross multiply
    695,650.45x = 959,995.50 × 385,572.84
  4. Step 4: Simplify right side
    695,650.45x = 370,148,191,322.22
  5. Step 5: Solve for x
    x = 370,148,191,322.22/695,650.45
  6. Step 6: Final answer
    x = 532,089.34

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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.