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Finding the Fourth Proportional to 620,794.24, 931,130.88 and 200,371.84

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Solution

The fourth proportional to 620,794.24, 931,130.88 and 200,371.84 is: 300,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,794.24 : 931,130.88 = 200,371.84 : x
  2. Step 2: Convert to fraction form
    620,794.24/931,130.88 = 200,371.84/x
  3. Step 3: Cross multiply
    620,794.24x = 931,130.88 × 200,371.84
  4. Step 4: Simplify right side
    620,794.24x = 186,572,407,706.42
  5. Step 5: Solve for x
    x = 186,572,407,706.42/620,794.24
  6. Step 6: Final answer
    x = 300,538.24

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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.