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Finding the Fourth Proportional to 518,972.94, 715,546.34 and 426,770.00

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Solution

The fourth proportional to 518,972.94, 715,546.34 and 426,770.00 is: 588,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,972.94 : 715,546.34 = 426,770.00 : x
  2. Step 2: Convert to fraction form
    518,972.94/715,546.34 = 426,770.00/x
  3. Step 3: Cross multiply
    518,972.94x = 715,546.34 × 426,770.00
  4. Step 4: Simplify right side
    518,972.94x = 305,373,714,913.06
  5. Step 5: Solve for x
    x = 305,373,714,913.06/518,972.94
  6. Step 6: Final answer
    x = 588,419.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.