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Finding the Fourth Proportional to 708,660,106.88, 978,434,502.72 and 458,371,195.52

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Solution

The fourth proportional to 708,660,106.88, 978,434,502.72 and 458,371,195.52 is: 632,865,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,660,106.88 : 978,434,502.72 = 458,371,195.52 : x
  2. Step 2: Convert to fraction form
    708,660,106.88/978,434,502.72 = 458,371,195.52/x
  3. Step 3: Cross multiply
    708,660,106.88x = 978,434,502.72 × 458,371,195.52
  4. Step 4: Simplify right side
    708,660,106.88x = 448,486,192,749,783,104
  5. Step 5: Solve for x
    x = 448,486,192,749,783,104/708,660,106.88
  6. Step 6: Final answer
    x = 632,865,020.05

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