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Finding the Fourth Proportional to 620,999.27, 931,498.90 and 200,275.14

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Solution

The fourth proportional to 620,999.27, 931,498.90 and 200,275.14 is: 300,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,999.27 : 931,498.90 = 200,275.14 : x
  2. Step 2: Convert to fraction form
    620,999.27/931,498.90 = 200,275.14/x
  3. Step 3: Cross multiply
    620,999.27x = 931,498.90 × 200,275.14
  4. Step 4: Simplify right side
    620,999.27x = 186,556,072,106.66
  5. Step 5: Solve for x
    x = 186,556,072,106.66/620,999.27
  6. Step 6: Final answer
    x = 300,412.71

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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.