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Finding the Fourth Proportional to 620,903.17, 930,512.49 and 283,525.57

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Solution

The fourth proportional to 620,903.17, 930,512.49 and 283,525.57 is: 424,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,903.17 : 930,512.49 = 283,525.57 : x
  2. Step 2: Convert to fraction form
    620,903.17/930,512.49 = 283,525.57/x
  3. Step 3: Cross multiply
    620,903.17x = 930,512.49 × 283,525.57
  4. Step 4: Simplify right side
    620,903.17x = 263,824,084,119.37
  5. Step 5: Solve for x
    x = 263,824,084,119.37/620,903.17
  6. Step 6: Final answer
    x = 424,903.75

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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.