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Finding the Fourth Proportional to 582,403.60, 873,605.40 and 345,624.40

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Solution

The fourth proportional to 582,403.60, 873,605.40 and 345,624.40 is: 518,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,403.60 : 873,605.40 = 345,624.40 : x
  2. Step 2: Convert to fraction form
    582,403.60/873,605.40 = 345,624.40/x
  3. Step 3: Cross multiply
    582,403.60x = 873,605.40 × 345,624.40
  4. Step 4: Simplify right side
    582,403.60x = 301,939,342,211.76
  5. Step 5: Solve for x
    x = 301,939,342,211.76/582,403.60
  6. Step 6: Final answer
    x = 518,436.60

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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.