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Finding the Fourth Proportional to 635,339.50, 953,195.65 and 256,065.50

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Solution

The fourth proportional to 635,339.50, 953,195.65 and 256,065.50 is: 384,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,339.50 : 953,195.65 = 256,065.50 : x
  2. Step 2: Convert to fraction form
    635,339.50/953,195.65 = 256,065.50/x
  3. Step 3: Cross multiply
    635,339.50x = 953,195.65 × 256,065.50
  4. Step 4: Simplify right side
    635,339.50x = 244,080,522,457.90
  5. Step 5: Solve for x
    x = 244,080,522,457.90/635,339.50
  6. Step 6: Final answer
    x = 384,173.38

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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.