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Finding the Fourth Proportional to 607,609.80, 910,977.30 and 341,451.90

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Solution

The fourth proportional to 607,609.80, 910,977.30 and 341,451.90 is: 511,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,609.80 : 910,977.30 = 341,451.90 : x
  2. Step 2: Convert to fraction form
    607,609.80/910,977.30 = 341,451.90/x
  3. Step 3: Cross multiply
    607,609.80x = 910,977.30 × 341,451.90
  4. Step 4: Simplify right side
    607,609.80x = 311,054,929,941.87
  5. Step 5: Solve for x
    x = 311,054,929,941.87/607,609.80
  6. Step 6: Final answer
    x = 511,932.05

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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.