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Finding the Fourth Proportional to 891,648,011.80, 1,337,472,017.70 and 796,413,784.60

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Solution

The fourth proportional to 891,648,011.80, 1,337,472,017.70 and 796,413,784.60 is: 1,194,620,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,648,011.80 : 1,337,472,017.70 = 796,413,784.60 : x
  2. Step 2: Convert to fraction form
    891,648,011.80/1,337,472,017.70 = 796,413,784.60/x
  3. Step 3: Cross multiply
    891,648,011.80x = 1,337,472,017.70 × 796,413,784.60
  4. Step 4: Simplify right side
    891,648,011.80x = 1,065,181,151,413,055,232
  5. Step 5: Solve for x
    x = 1,065,181,151,413,055,232/891,648,011.80
  6. Step 6: Final answer
    x = 1,194,620,676.90

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Similar ratio
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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.