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Finding the Fourth Proportional to 345,333.49, 518,074.35 and 195,645.49

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Solution

The fourth proportional to 345,333.49, 518,074.35 and 195,645.49 is: 293,510.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,333.49 : 518,074.35 = 195,645.49 : x
  2. Step 2: Convert to fraction form
    345,333.49/518,074.35 = 195,645.49/x
  3. Step 3: Cross multiply
    345,333.49x = 518,074.35 × 195,645.49
  4. Step 4: Simplify right side
    345,333.49x = 101,358,910,062.18
  5. Step 5: Solve for x
    x = 101,358,910,062.18/345,333.49
  6. Step 6: Final answer
    x = 293,510.22

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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.