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Finding the Fourth Proportional to 291,630.30, 437,445.42 and 70,014.30

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Solution

The fourth proportional to 291,630.30, 437,445.42 and 70,014.30 is: 105,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,630.30 : 437,445.42 = 70,014.30 : x
  2. Step 2: Convert to fraction form
    291,630.30/437,445.42 = 70,014.30/x
  3. Step 3: Cross multiply
    291,630.30x = 437,445.42 × 70,014.30
  4. Step 4: Simplify right side
    291,630.30x = 30,627,434,869.51
  5. Step 5: Solve for x
    x = 30,627,434,869.51/291,630.30
  6. Step 6: Final answer
    x = 105,021.44

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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.