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Finding the Fourth Proportional to 540,649.12, 746,087.57 and 295,634.66

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Solution

The fourth proportional to 540,649.12, 746,087.57 and 295,634.66 is: 407,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,649.12 : 746,087.57 = 295,634.66 : x
  2. Step 2: Convert to fraction form
    540,649.12/746,087.57 = 295,634.66/x
  3. Step 3: Cross multiply
    540,649.12x = 746,087.57 × 295,634.66
  4. Step 4: Simplify right side
    540,649.12x = 220,569,345,087.18
  5. Step 5: Solve for x
    x = 220,569,345,087.18/540,649.12
  6. Step 6: Final answer
    x = 407,971.34

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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.