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Finding the Fourth Proportional to 631,473.54, 947,445.57 and 378,935.19

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Solution

The fourth proportional to 631,473.54, 947,445.57 and 378,935.19 is: 568,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,473.54 : 947,445.57 = 378,935.19 : x
  2. Step 2: Convert to fraction form
    631,473.54/947,445.57 = 378,935.19/x
  3. Step 3: Cross multiply
    631,473.54x = 947,445.57 × 378,935.19
  4. Step 4: Simplify right side
    631,473.54x = 359,020,467,082.61
  5. Step 5: Solve for x
    x = 359,020,467,082.61/631,473.54
  6. Step 6: Final answer
    x = 568,543.96

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Half scale
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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.