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Finding the Fourth Proportional to 265,733,665.60, 398,600,498.40 and 255,529,998.40

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Solution

The fourth proportional to 265,733,665.60, 398,600,498.40 and 255,529,998.40 is: 383,294,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,733,665.60 : 398,600,498.40 = 255,529,998.40 : x
  2. Step 2: Convert to fraction form
    265,733,665.60/398,600,498.40 = 255,529,998.40/x
  3. Step 3: Cross multiply
    265,733,665.60x = 398,600,498.40 × 255,529,998.40
  4. Step 4: Simplify right side
    265,733,665.60x = 101,854,384,718,391,200
  5. Step 5: Solve for x
    x = 101,854,384,718,391,200/265,733,665.60
  6. Step 6: Final answer
    x = 383,294,997.60

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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.