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Finding the Fourth Proportional to 934,313.60, 1,401,470.40 and 343,260.80

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Solution

The fourth proportional to 934,313.60, 1,401,470.40 and 343,260.80 is: 514,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,313.60 : 1,401,470.40 = 343,260.80 : x
  2. Step 2: Convert to fraction form
    934,313.60/1,401,470.40 = 343,260.80/x
  3. Step 3: Cross multiply
    934,313.60x = 1,401,470.40 × 343,260.80
  4. Step 4: Simplify right side
    934,313.60x = 481,069,850,680.32
  5. Step 5: Solve for x
    x = 481,069,850,680.32/934,313.60
  6. Step 6: Final answer
    x = 514,891.20

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Similar ratio
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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.