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Finding the Fourth Proportional to 532,356.60, 798,534.90 and 343,399.80

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Solution

The fourth proportional to 532,356.60, 798,534.90 and 343,399.80 is: 515,099.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,356.60 : 798,534.90 = 343,399.80 : x
  2. Step 2: Convert to fraction form
    532,356.60/798,534.90 = 343,399.80/x
  3. Step 3: Cross multiply
    532,356.60x = 798,534.90 × 343,399.80
  4. Step 4: Simplify right side
    532,356.60x = 274,216,724,953.02
  5. Step 5: Solve for x
    x = 274,216,724,953.02/532,356.60
  6. Step 6: Final answer
    x = 515,099.70

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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.