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Finding the Fourth Proportional to 582,427.80, 873,641.70 and 345,648.60

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Solution

The fourth proportional to 582,427.80, 873,641.70 and 345,648.60 is: 518,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,427.80 : 873,641.70 = 345,648.60 : x
  2. Step 2: Convert to fraction form
    582,427.80/873,641.70 = 345,648.60/x
  3. Step 3: Cross multiply
    582,427.80x = 873,641.70 × 345,648.60
  4. Step 4: Simplify right side
    582,427.80x = 301,973,030,506.62
  5. Step 5: Solve for x
    x = 301,973,030,506.62/582,427.80
  6. Step 6: Final answer
    x = 518,472.90

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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.