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Finding the Fourth Proportional to 611,752.60, 917,628.90 and 162,542.80

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Solution

The fourth proportional to 611,752.60, 917,628.90 and 162,542.80 is: 243,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,752.60 : 917,628.90 = 162,542.80 : x
  2. Step 2: Convert to fraction form
    611,752.60/917,628.90 = 162,542.80/x
  3. Step 3: Cross multiply
    611,752.60x = 917,628.90 × 162,542.80
  4. Step 4: Simplify right side
    611,752.60x = 149,153,970,766.92
  5. Step 5: Solve for x
    x = 149,153,970,766.92/611,752.60
  6. Step 6: Final answer
    x = 243,814.20

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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.