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Finding the Fourth Proportional to 434,740.70, 652,111.05 and 248,116.70

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Solution

The fourth proportional to 434,740.70, 652,111.05 and 248,116.70 is: 372,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,740.70 : 652,111.05 = 248,116.70 : x
  2. Step 2: Convert to fraction form
    434,740.70/652,111.05 = 248,116.70/x
  3. Step 3: Cross multiply
    434,740.70x = 652,111.05 × 248,116.70
  4. Step 4: Simplify right side
    434,740.70x = 161,799,641,759.54
  5. Step 5: Solve for x
    x = 161,799,641,759.54/434,740.70
  6. Step 6: Final answer
    x = 372,175.05

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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.