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Finding the Fourth Proportional to 584,453.70, 876,680.55 and 519,499.80

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Solution

The fourth proportional to 584,453.70, 876,680.55 and 519,499.80 is: 779,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,453.70 : 876,680.55 = 519,499.80 : x
  2. Step 2: Convert to fraction form
    584,453.70/876,680.55 = 519,499.80/x
  3. Step 3: Cross multiply
    584,453.70x = 876,680.55 × 519,499.80
  4. Step 4: Simplify right side
    584,453.70x = 455,435,370,388.89
  5. Step 5: Solve for x
    x = 455,435,370,388.89/584,453.70
  6. Step 6: Final answer
    x = 779,249.70

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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.