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Finding the Fourth Proportional to 631,010.70, 946,518.48 and 157,696.56

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Solution

The fourth proportional to 631,010.70, 946,518.48 and 157,696.56 is: 236,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,010.70 : 946,518.48 = 157,696.56 : x
  2. Step 2: Convert to fraction form
    631,010.70/946,518.48 = 157,696.56/x
  3. Step 3: Cross multiply
    631,010.70x = 946,518.48 × 157,696.56
  4. Step 4: Simplify right side
    631,010.70x = 149,262,708,272.43
  5. Step 5: Solve for x
    x = 149,262,708,272.43/631,010.70
  6. Step 6: Final answer
    x = 236,545.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.