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Finding the Fourth Proportional to 434,636.40, 652,111.20 and 194,730.60

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Solution

The fourth proportional to 434,636.40, 652,111.20 and 194,730.60 is: 292,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,636.40 : 652,111.20 = 194,730.60 : x
  2. Step 2: Convert to fraction form
    434,636.40/652,111.20 = 194,730.60/x
  3. Step 3: Cross multiply
    434,636.40x = 652,111.20 × 194,730.60
  4. Step 4: Simplify right side
    434,636.40x = 126,986,005,242.72
  5. Step 5: Solve for x
    x = 126,986,005,242.72/434,636.40
  6. Step 6: Final answer
    x = 292,166.06

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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.