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Finding the Fourth Proportional to 378,421.48, 567,634.46 and 112,184.24

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Solution

The fourth proportional to 378,421.48, 567,634.46 and 112,184.24 is: 168,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,421.48 : 567,634.46 = 112,184.24 : x
  2. Step 2: Convert to fraction form
    378,421.48/567,634.46 = 112,184.24/x
  3. Step 3: Cross multiply
    378,421.48x = 567,634.46 × 112,184.24
  4. Step 4: Simplify right side
    378,421.48x = 63,679,640,492.91
  5. Step 5: Solve for x
    x = 63,679,640,492.91/378,421.48
  6. Step 6: Final answer
    x = 168,277.02

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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.