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Finding the Fourth Proportional to 606,136.20, 909,204.30 and 185,411.40

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Solution

The fourth proportional to 606,136.20, 909,204.30 and 185,411.40 is: 278,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,136.20 : 909,204.30 = 185,411.40 : x
  2. Step 2: Convert to fraction form
    606,136.20/909,204.30 = 185,411.40/x
  3. Step 3: Cross multiply
    606,136.20x = 909,204.30 × 185,411.40
  4. Step 4: Simplify right side
    606,136.20x = 168,576,842,149.02
  5. Step 5: Solve for x
    x = 168,576,842,149.02/606,136.20
  6. Step 6: Final answer
    x = 278,117.10

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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.