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Finding the Fourth Proportional to 612,624.58, 918,815.72 and 582,244.30

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Solution

The fourth proportional to 612,624.58, 918,815.72 and 582,244.30 is: 873,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,624.58 : 918,815.72 = 582,244.30 : x
  2. Step 2: Convert to fraction form
    612,624.58/918,815.72 = 582,244.30/x
  3. Step 3: Cross multiply
    612,624.58x = 918,815.72 × 582,244.30
  4. Step 4: Simplify right side
    612,624.58x = 534,975,215,720.40
  5. Step 5: Solve for x
    x = 534,975,215,720.40/612,624.58
  6. Step 6: Final answer
    x = 873,251.31

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Double scale
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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.