Home / 645,686.55-968,184.23-271,286.55

Finding the Fourth Proportional to 645,686.55, 968,184.23 and 271,286.55

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Solution

The fourth proportional to 645,686.55, 968,184.23 and 271,286.55 is: 406,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,686.55 : 968,184.23 = 271,286.55 : x
  2. Step 2: Convert to fraction form
    645,686.55/968,184.23 = 271,286.55/x
  3. Step 3: Cross multiply
    645,686.55x = 968,184.23 × 271,286.55
  4. Step 4: Simplify right side
    645,686.55x = 262,655,358,164.67
  5. Step 5: Solve for x
    x = 262,655,358,164.67/645,686.55
  6. Step 6: Final answer
    x = 406,784.62

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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.