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Finding the Fourth Proportional to 364,710.60, 546,774.30 and 154,175.40

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Solution

The fourth proportional to 364,710.60, 546,774.30 and 154,175.40 is: 231,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,710.60 : 546,774.30 = 154,175.40 : x
  2. Step 2: Convert to fraction form
    364,710.60/546,774.30 = 154,175.40/x
  3. Step 3: Cross multiply
    364,710.60x = 546,774.30 × 154,175.40
  4. Step 4: Simplify right side
    364,710.60x = 84,299,146,412.22
  5. Step 5: Solve for x
    x = 84,299,146,412.22/364,710.60
  6. Step 6: Final answer
    x = 231,139.83

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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.