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Finding the Fourth Proportional to 343,010.05, 514,315.61 and 129,794.43

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Solution

The fourth proportional to 343,010.05, 514,315.61 and 129,794.43 is: 194,616.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,010.05 : 514,315.61 = 129,794.43 : x
  2. Step 2: Convert to fraction form
    343,010.05/514,315.61 = 129,794.43/x
  3. Step 3: Cross multiply
    343,010.05x = 514,315.61 × 129,794.43
  4. Step 4: Simplify right side
    343,010.05x = 66,755,298,219.50
  5. Step 5: Solve for x
    x = 66,755,298,219.50/343,010.05
  6. Step 6: Final answer
    x = 194,616.16

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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.