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Finding the Fourth Proportional to 704,813,570.66, 972,732,405.30 and 426,357,086.96

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Solution

The fourth proportional to 704,813,570.66, 972,732,405.30 and 426,357,086.96 is: 588,427,028.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,813,570.66 : 972,732,405.30 = 426,357,086.96 : x
  2. Step 2: Convert to fraction form
    704,813,570.66/972,732,405.30 = 426,357,086.96/x
  3. Step 3: Cross multiply
    704,813,570.66x = 972,732,405.30 × 426,357,086.96
  4. Step 4: Simplify right side
    704,813,570.66x = 414,731,354,715,302,016
  5. Step 5: Solve for x
    x = 414,731,354,715,302,016/704,813,570.66
  6. Step 6: Final answer
    x = 588,427,028.05

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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.