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Finding the Fourth Proportional to 569,772,633.40, 786,368,812.61 and 328,321,634.15

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Solution

The fourth proportional to 569,772,633.40, 786,368,812.61 and 328,321,634.15 is: 453,131,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,772,633.40 : 786,368,812.61 = 328,321,634.15 : x
  2. Step 2: Convert to fraction form
    569,772,633.40/786,368,812.61 = 328,321,634.15/x
  3. Step 3: Cross multiply
    569,772,633.40x = 786,368,812.61 × 328,321,634.15
  4. Step 4: Simplify right side
    569,772,633.40x = 258,181,893,600,710,304
  5. Step 5: Solve for x
    x = 258,181,893,600,710,304/569,772,633.40
  6. Step 6: Final answer
    x = 453,131,439.57

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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.