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Finding the Fourth Proportional to 411,525.59, 617,347.53 and 127,238.30

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Solution

The fourth proportional to 411,525.59, 617,347.53 and 127,238.30 is: 190,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,525.59 : 617,347.53 = 127,238.30 : x
  2. Step 2: Convert to fraction form
    411,525.59/617,347.53 = 127,238.30/x
  3. Step 3: Cross multiply
    411,525.59x = 617,347.53 × 127,238.30
  4. Step 4: Simplify right side
    411,525.59x = 78,550,250,226.40
  5. Step 5: Solve for x
    x = 78,550,250,226.40/411,525.59
  6. Step 6: Final answer
    x = 190,875.74

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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.