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Finding the Fourth Proportional to 873,766,705.70, 1,310,650,058.55 and 798,939,812.90

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Solution

The fourth proportional to 873,766,705.70, 1,310,650,058.55 and 798,939,812.90 is: 1,198,409,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,766,705.70 : 1,310,650,058.55 = 798,939,812.90 : x
  2. Step 2: Convert to fraction form
    873,766,705.70/1,310,650,058.55 = 798,939,812.90/x
  3. Step 3: Cross multiply
    873,766,705.70x = 1,310,650,058.55 × 798,939,812.90
  4. Step 4: Simplify right side
    873,766,705.70x = 1,047,130,512,555,310,976
  5. Step 5: Solve for x
    x = 1,047,130,512,555,310,976/873,766,705.70
  6. Step 6: Final answer
    x = 1,198,409,719.35

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1.5x scale

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.