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Finding the Fourth Proportional to 493,669.70, 740,504.55 and 283,328.90

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Solution

The fourth proportional to 493,669.70, 740,504.55 and 283,328.90 is: 424,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,669.70 : 740,504.55 = 283,328.90 : x
  2. Step 2: Convert to fraction form
    493,669.70/740,504.55 = 283,328.90/x
  3. Step 3: Cross multiply
    493,669.70x = 740,504.55 × 283,328.90
  4. Step 4: Simplify right side
    493,669.70x = 209,806,339,596.50
  5. Step 5: Solve for x
    x = 209,806,339,596.50/493,669.70
  6. Step 6: Final answer
    x = 424,993.35

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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.