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Finding the Fourth Proportional to 465,945.40, 698,918.10 and 133,521.40

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Solution

The fourth proportional to 465,945.40, 698,918.10 and 133,521.40 is: 200,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,945.40 : 698,918.10 = 133,521.40 : x
  2. Step 2: Convert to fraction form
    465,945.40/698,918.10 = 133,521.40/x
  3. Step 3: Cross multiply
    465,945.40x = 698,918.10 × 133,521.40
  4. Step 4: Simplify right side
    465,945.40x = 93,320,523,197.34
  5. Step 5: Solve for x
    x = 93,320,523,197.34/465,945.40
  6. Step 6: Final answer
    x = 200,282.10

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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.