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Finding the Fourth Proportional to 873,766,627.20, 1,310,649,940.80 and 798,939,734.40

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Solution

The fourth proportional to 873,766,627.20, 1,310,649,940.80 and 798,939,734.40 is: 1,198,409,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,766,627.20 : 1,310,649,940.80 = 798,939,734.40 : x
  2. Step 2: Convert to fraction form
    873,766,627.20/1,310,649,940.80 = 798,939,734.40/x
  3. Step 3: Cross multiply
    873,766,627.20x = 1,310,649,940.80 × 798,939,734.40
  4. Step 4: Simplify right side
    873,766,627.20x = 1,047,130,315,594,127,616
  5. Step 5: Solve for x
    x = 1,047,130,315,594,127,616/873,766,627.20
  6. Step 6: Final answer
    x = 1,198,409,601.60

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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.