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Finding the Fourth Proportional to 298,953,601.10, 448,430,401.65 and 286,039,584.80

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Solution

The fourth proportional to 298,953,601.10, 448,430,401.65 and 286,039,584.80 is: 429,059,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,953,601.10 : 448,430,401.65 = 286,039,584.80 : x
  2. Step 2: Convert to fraction form
    298,953,601.10/448,430,401.65 = 286,039,584.80/x
  3. Step 3: Cross multiply
    298,953,601.10x = 448,430,401.65 × 286,039,584.80
  4. Step 4: Simplify right side
    298,953,601.10x = 128,268,845,899,663,232
  5. Step 5: Solve for x
    x = 128,268,845,899,663,232/298,953,601.10
  6. Step 6: Final answer
    x = 429,059,377.20

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