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Finding the Fourth Proportional to 400,501.96, 552,690.69 and 216,740.38

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Solution

The fourth proportional to 400,501.96, 552,690.69 and 216,740.38 is: 299,100.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,501.96 : 552,690.69 = 216,740.38 : x
  2. Step 2: Convert to fraction form
    400,501.96/552,690.69 = 216,740.38/x
  3. Step 3: Cross multiply
    400,501.96x = 552,690.69 × 216,740.38
  4. Step 4: Simplify right side
    400,501.96x = 119,790,390,173.06
  5. Step 5: Solve for x
    x = 119,790,390,173.06/400,501.96
  6. Step 6: Final answer
    x = 299,100.63

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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.