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Finding the Fourth Proportional to 289,504.04, 436,228.19 and 238,065.80

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Solution

The fourth proportional to 289,504.04, 436,228.19 and 238,065.80 is: 358,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,504.04 : 436,228.19 = 238,065.80 : x
  2. Step 2: Convert to fraction form
    289,504.04/436,228.19 = 238,065.80/x
  3. Step 3: Cross multiply
    289,504.04x = 436,228.19 × 238,065.80
  4. Step 4: Simplify right side
    289,504.04x = 103,851,013,034.90
  5. Step 5: Solve for x
    x = 103,851,013,034.90/289,504.04
  6. Step 6: Final answer
    x = 358,720.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.