Home / 434,519.20-651,195.60-309,714.40

Finding the Fourth Proportional to 434,519.20, 651,195.60 and 309,714.40

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Solution

The fourth proportional to 434,519.20, 651,195.60 and 309,714.40 is: 464,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,519.20 : 651,195.60 = 309,714.40 : x
  2. Step 2: Convert to fraction form
    434,519.20/651,195.60 = 309,714.40/x
  3. Step 3: Cross multiply
    434,519.20x = 651,195.60 × 309,714.40
  4. Step 4: Simplify right side
    434,519.20x = 201,684,654,536.64
  5. Step 5: Solve for x
    x = 201,684,654,536.64/434,519.20
  6. Step 6: Final answer
    x = 464,155.91

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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.