Home / 694,655,998.80-1,041,983,998.20-368,138,648.40

Finding the Fourth Proportional to 694,655,998.80, 1,041,983,998.20 and 368,138,648.40

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Solution

The fourth proportional to 694,655,998.80, 1,041,983,998.20 and 368,138,648.40 is: 552,207,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,655,998.80 : 1,041,983,998.20 = 368,138,648.40 : x
  2. Step 2: Convert to fraction form
    694,655,998.80/1,041,983,998.20 = 368,138,648.40/x
  3. Step 3: Cross multiply
    694,655,998.80x = 1,041,983,998.20 × 368,138,648.40
  4. Step 4: Simplify right side
    694,655,998.80x = 383,594,580,751,776,000
  5. Step 5: Solve for x
    x = 383,594,580,751,776,000/694,655,998.80
  6. Step 6: Final answer
    x = 552,207,972.60

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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.