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Finding the Fourth Proportional to 647,102.10, 970,653.15 and 367,166.10

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Solution

The fourth proportional to 647,102.10, 970,653.15 and 367,166.10 is: 550,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,102.10 : 970,653.15 = 367,166.10 : x
  2. Step 2: Convert to fraction form
    647,102.10/970,653.15 = 367,166.10/x
  3. Step 3: Cross multiply
    647,102.10x = 970,653.15 × 367,166.10
  4. Step 4: Simplify right side
    647,102.10x = 356,390,931,538.22
  5. Step 5: Solve for x
    x = 356,390,931,538.22/647,102.10
  6. Step 6: Final answer
    x = 550,749.15

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Double scale
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Similar ratio
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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.