Home / 676,837.38-934,003.53-405,054.81

Finding the Fourth Proportional to 676,837.38, 934,003.53 and 405,054.81

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Solution

The fourth proportional to 676,837.38, 934,003.53 and 405,054.81 is: 558,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,837.38 : 934,003.53 = 405,054.81 : x
  2. Step 2: Convert to fraction form
    676,837.38/934,003.53 = 405,054.81/x
  3. Step 3: Cross multiply
    676,837.38x = 934,003.53 × 405,054.81
  4. Step 4: Simplify right side
    676,837.38x = 378,322,622,383.48
  5. Step 5: Solve for x
    x = 378,322,622,383.48/676,837.38
  6. Step 6: Final answer
    x = 558,956.45

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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.