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Finding the Fourth Proportional to 609,695.88, 841,388.76 and 351,568.32

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Solution

The fourth proportional to 609,695.88, 841,388.76 and 351,568.32 is: 485,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,695.88 : 841,388.76 = 351,568.32 : x
  2. Step 2: Convert to fraction form
    609,695.88/841,388.76 = 351,568.32/x
  3. Step 3: Cross multiply
    609,695.88x = 841,388.76 × 351,568.32
  4. Step 4: Simplify right side
    609,695.88x = 295,805,632,820.08
  5. Step 5: Solve for x
    x = 295,805,632,820.08/609,695.88
  6. Step 6: Final answer
    x = 485,169.15

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Half scale
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Double scale
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Similar ratio
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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.