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Finding the Fourth Proportional to 606,614.40, 909,921.60 and 207,195.30

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Solution

The fourth proportional to 606,614.40, 909,921.60 and 207,195.30 is: 310,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,614.40 : 909,921.60 = 207,195.30 : x
  2. Step 2: Convert to fraction form
    606,614.40/909,921.60 = 207,195.30/x
  3. Step 3: Cross multiply
    606,614.40x = 909,921.60 × 207,195.30
  4. Step 4: Simplify right side
    606,614.40x = 188,531,478,888.48
  5. Step 5: Solve for x
    x = 188,531,478,888.48/606,614.40
  6. Step 6: Final answer
    x = 310,792.95

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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.