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Finding the Fourth Proportional to 656,045,683, 905,361,938.22 and 362,709,146.68

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Solution

The fourth proportional to 656,045,683, 905,361,938.22 and 362,709,146.68 is: 500,549,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,045,683 : 905,361,938.22 = 362,709,146.68 : x
  2. Step 2: Convert to fraction form
    656,045,683/905,361,938.22 = 362,709,146.68/x
  3. Step 3: Cross multiply
    656,045,683x = 905,361,938.22 × 362,709,146.68
  4. Step 4: Simplify right side
    656,045,683x = 328,383,056,048,327,104
  5. Step 5: Solve for x
    x = 328,383,056,048,327,104/656,045,683
  6. Step 6: Final answer
    x = 500,549,069.31

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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.