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Finding the Fourth Proportional to 668,736,000.20, 1,003,104,000.30 and 406,841,875.40

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Solution

The fourth proportional to 668,736,000.20, 1,003,104,000.30 and 406,841,875.40 is: 610,262,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,736,000.20 : 1,003,104,000.30 = 406,841,875.40 : x
  2. Step 2: Convert to fraction form
    668,736,000.20/1,003,104,000.30 = 406,841,875.40/x
  3. Step 3: Cross multiply
    668,736,000.20x = 1,003,104,000.30 × 406,841,875.40
  4. Step 4: Simplify right side
    668,736,000.20x = 408,104,712,703,294,144
  5. Step 5: Solve for x
    x = 408,104,712,703,294,144/668,736,000.20
  6. Step 6: Final answer
    x = 610,262,813.10

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