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Finding the Fourth Proportional to 343,966.08, 515,338.08 and 293,534.40

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Solution

The fourth proportional to 343,966.08, 515,338.08 and 293,534.40 is: 439,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,966.08 : 515,338.08 = 293,534.40 : x
  2. Step 2: Convert to fraction form
    343,966.08/515,338.08 = 293,534.40/x
  3. Step 3: Cross multiply
    343,966.08x = 515,338.08 × 293,534.40
  4. Step 4: Simplify right side
    343,966.08x = 151,269,454,109.95
  5. Step 5: Solve for x
    x = 151,269,454,109.95/343,966.08
  6. Step 6: Final answer
    x = 439,780.15

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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.