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Finding the Fourth Proportional to 493,363.20, 740,044.80 and 177,830.40

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Solution

The fourth proportional to 493,363.20, 740,044.80 and 177,830.40 is: 266,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,363.20 : 740,044.80 = 177,830.40 : x
  2. Step 2: Convert to fraction form
    493,363.20/740,044.80 = 177,830.40/x
  3. Step 3: Cross multiply
    493,363.20x = 740,044.80 × 177,830.40
  4. Step 4: Simplify right side
    493,363.20x = 131,602,462,801.92
  5. Step 5: Solve for x
    x = 131,602,462,801.92/493,363.20
  6. Step 6: Final answer
    x = 266,745.60

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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.