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Finding the Fourth Proportional to 619,641.60, 929,462.40 and 582,316.80

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Solution

The fourth proportional to 619,641.60, 929,462.40 and 582,316.80 is: 873,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,641.60 : 929,462.40 = 582,316.80 : x
  2. Step 2: Convert to fraction form
    619,641.60/929,462.40 = 582,316.80/x
  3. Step 3: Cross multiply
    619,641.60x = 929,462.40 × 582,316.80
  4. Step 4: Simplify right side
    619,641.60x = 541,241,570,488.32
  5. Step 5: Solve for x
    x = 541,241,570,488.32/619,641.60
  6. Step 6: Final answer
    x = 873,475.20

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Half scale
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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.