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Finding the Fourth Proportional to 609,627.76, 910,733.80 and 394,644.29

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Solution

The fourth proportional to 609,627.76, 910,733.80 and 394,644.29 is: 589,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,627.76 : 910,733.80 = 394,644.29 : x
  2. Step 2: Convert to fraction form
    609,627.76/910,733.80 = 394,644.29/x
  3. Step 3: Cross multiply
    609,627.76x = 910,733.80 × 394,644.29
  4. Step 4: Simplify right side
    609,627.76x = 359,415,887,353.11
  5. Step 5: Solve for x
    x = 359,415,887,353.11/609,627.76
  6. Step 6: Final answer
    x = 589,566.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.