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Finding the Fourth Proportional to 296,395.18, 409,028.61 and 169,078.30

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Solution

The fourth proportional to 296,395.18, 409,028.61 and 169,078.30 is: 233,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,395.18 : 409,028.61 = 169,078.30 : x
  2. Step 2: Convert to fraction form
    296,395.18/409,028.61 = 169,078.30/x
  3. Step 3: Cross multiply
    296,395.18x = 409,028.61 × 169,078.30
  4. Step 4: Simplify right side
    296,395.18x = 69,157,862,030.16
  5. Step 5: Solve for x
    x = 69,157,862,030.16/296,395.18
  6. Step 6: Final answer
    x = 233,329.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.