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Finding the Fourth Proportional to 713,556.11, 985,224.03 and 459,350.12

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Solution

The fourth proportional to 713,556.11, 985,224.03 and 459,350.12 is: 634,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,556.11 : 985,224.03 = 459,350.12 : x
  2. Step 2: Convert to fraction form
    713,556.11/985,224.03 = 459,350.12/x
  3. Step 3: Cross multiply
    713,556.11x = 985,224.03 × 459,350.12
  4. Step 4: Simplify right side
    713,556.11x = 452,562,776,407.38
  5. Step 5: Solve for x
    x = 452,562,776,407.38/713,556.11
  6. Step 6: Final answer
    x = 634,235.72

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.