Home / 434,518.20-651,194.10-309,713.40

Finding the Fourth Proportional to 434,518.20, 651,194.10 and 309,713.40

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Solution

The fourth proportional to 434,518.20, 651,194.10 and 309,713.40 is: 464,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,518.20 : 651,194.10 = 309,713.40 : x
  2. Step 2: Convert to fraction form
    434,518.20/651,194.10 = 309,713.40/x
  3. Step 3: Cross multiply
    434,518.20x = 651,194.10 × 309,713.40
  4. Step 4: Simplify right side
    434,518.20x = 201,683,538,770.94
  5. Step 5: Solve for x
    x = 201,683,538,770.94/434,518.20
  6. Step 6: Final answer
    x = 464,154.41

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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.