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Finding the Fourth Proportional to 662,497.80, 993,669.90 and 189,256.20

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Solution

The fourth proportional to 662,497.80, 993,669.90 and 189,256.20 is: 283,862.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,497.80 : 993,669.90 = 189,256.20 : x
  2. Step 2: Convert to fraction form
    662,497.80/993,669.90 = 189,256.20/x
  3. Step 3: Cross multiply
    662,497.80x = 993,669.90 × 189,256.20
  4. Step 4: Simplify right side
    662,497.80x = 188,058,189,328.38
  5. Step 5: Solve for x
    x = 188,058,189,328.38/662,497.80
  6. Step 6: Final answer
    x = 283,862.36

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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.