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Finding the Fourth Proportional to 416,423.35, 574,663.57 and 225,436.69

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Solution

The fourth proportional to 416,423.35, 574,663.57 and 225,436.69 is: 311,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,423.35 : 574,663.57 = 225,436.69 : x
  2. Step 2: Convert to fraction form
    416,423.35/574,663.57 = 225,436.69/x
  3. Step 3: Cross multiply
    416,423.35x = 574,663.57 × 225,436.69
  4. Step 4: Simplify right side
    416,423.35x = 129,550,253,084.38
  5. Step 5: Solve for x
    x = 129,550,253,084.38/416,423.35
  6. Step 6: Final answer
    x = 311,102.28

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.