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Finding the Fourth Proportional to 941,661.60, 1,412,492.40 and 343,298.40

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Solution

The fourth proportional to 941,661.60, 1,412,492.40 and 343,298.40 is: 514,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,661.60 : 1,412,492.40 = 343,298.40 : x
  2. Step 2: Convert to fraction form
    941,661.60/1,412,492.40 = 343,298.40/x
  3. Step 3: Cross multiply
    941,661.60x = 1,412,492.40 × 343,298.40
  4. Step 4: Simplify right side
    941,661.60x = 484,906,380,932.16
  5. Step 5: Solve for x
    x = 484,906,380,932.16/941,661.60
  6. Step 6: Final answer
    x = 514,947.60

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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.