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Finding the Fourth Proportional to 356,931.78, 534,345.74 and 312,645.03

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Solution

The fourth proportional to 356,931.78, 534,345.74 and 312,645.03 is: 468,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,931.78 : 534,345.74 = 312,645.03 : x
  2. Step 2: Convert to fraction form
    356,931.78/534,345.74 = 312,645.03/x
  3. Step 3: Cross multiply
    356,931.78x = 534,345.74 × 312,645.03
  4. Step 4: Simplify right side
    356,931.78x = 167,060,536,459.33
  5. Step 5: Solve for x
    x = 167,060,536,459.33/356,931.78
  6. Step 6: Final answer
    x = 468,046.13

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