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Finding the Fourth Proportional to 708,907,669.80, 1,062,883,207.80 and 340,619,056.80

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Solution

The fourth proportional to 708,907,669.80, 1,062,883,207.80 and 340,619,056.80 is: 510,698,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,907,669.80 : 1,062,883,207.80 = 340,619,056.80 : x
  2. Step 2: Convert to fraction form
    708,907,669.80/1,062,883,207.80 = 340,619,056.80/x
  3. Step 3: Cross multiply
    708,907,669.80x = 1,062,883,207.80 × 340,619,056.80
  4. Step 4: Simplify right side
    708,907,669.80x = 362,038,275,729,394,368
  5. Step 5: Solve for x
    x = 362,038,275,729,394,368/708,907,669.80
  6. Step 6: Final answer
    x = 510,698,771.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.