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Finding the Fourth Proportional to 620,057.25, 930,090.93 and 170,802.90

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Solution

The fourth proportional to 620,057.25, 930,090.93 and 170,802.90 is: 256,205.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,057.25 : 930,090.93 = 170,802.90 : x
  2. Step 2: Convert to fraction form
    620,057.25/930,090.93 = 170,802.90/x
  3. Step 3: Cross multiply
    620,057.25x = 930,090.93 × 170,802.90
  4. Step 4: Simplify right side
    620,057.25x = 158,862,228,107.70
  5. Step 5: Solve for x
    x = 158,862,228,107.70/620,057.25
  6. Step 6: Final answer
    x = 256,205.74

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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.