Home / 447,153.31-617,071.12-256,167.46

Finding the Fourth Proportional to 447,153.31, 617,071.12 and 256,167.46

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Solution

The fourth proportional to 447,153.31, 617,071.12 and 256,167.46 is: 353,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,153.31 : 617,071.12 = 256,167.46 : x
  2. Step 2: Convert to fraction form
    447,153.31/617,071.12 = 256,167.46/x
  3. Step 3: Cross multiply
    447,153.31x = 617,071.12 × 256,167.46
  4. Step 4: Simplify right side
    447,153.31x = 158,073,541,449.76
  5. Step 5: Solve for x
    x = 158,073,541,449.76/447,153.31
  6. Step 6: Final answer
    x = 353,510.84

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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.