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Finding the Fourth Proportional to 675,961.50, 932,929.33 and 385,571.64

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Solution

The fourth proportional to 675,961.50, 932,929.33 and 385,571.64 is: 532,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,961.50 : 932,929.33 = 385,571.64 : x
  2. Step 2: Convert to fraction form
    675,961.50/932,929.33 = 385,571.64/x
  3. Step 3: Cross multiply
    675,961.50x = 932,929.33 × 385,571.64
  4. Step 4: Simplify right side
    675,961.50x = 359,711,091,772.20
  5. Step 5: Solve for x
    x = 359,711,091,772.20/675,961.50
  6. Step 6: Final answer
    x = 532,147.31

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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.