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Finding the Fourth Proportional to 529,193.70, 793,790.55 and 493,764.30

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Solution

The fourth proportional to 529,193.70, 793,790.55 and 493,764.30 is: 740,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,193.70 : 793,790.55 = 493,764.30 : x
  2. Step 2: Convert to fraction form
    529,193.70/793,790.55 = 493,764.30/x
  3. Step 3: Cross multiply
    529,193.70x = 793,790.55 × 493,764.30
  4. Step 4: Simplify right side
    529,193.70x = 391,945,435,267.37
  5. Step 5: Solve for x
    x = 391,945,435,267.37/529,193.70
  6. Step 6: Final answer
    x = 740,646.45

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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.