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Finding the Fourth Proportional to 540,614.76, 746,018.28 and 298,883.22

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Solution

The fourth proportional to 540,614.76, 746,018.28 and 298,883.22 is: 412,442.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,614.76 : 746,018.28 = 298,883.22 : x
  2. Step 2: Convert to fraction form
    540,614.76/746,018.28 = 298,883.22/x
  3. Step 3: Cross multiply
    540,614.76x = 746,018.28 × 298,883.22
  4. Step 4: Simplify right side
    540,614.76x = 222,972,345,705.26
  5. Step 5: Solve for x
    x = 222,972,345,705.26/540,614.76
  6. Step 6: Final answer
    x = 412,442.21

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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.