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Finding the Fourth Proportional to 547,927.50, 756,086.88 and 343,913.22

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Solution

The fourth proportional to 547,927.50, 756,086.88 and 343,913.22 is: 474,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,927.50 : 756,086.88 = 343,913.22 : x
  2. Step 2: Convert to fraction form
    547,927.50/756,086.88 = 343,913.22/x
  3. Step 3: Cross multiply
    547,927.50x = 756,086.88 × 343,913.22
  4. Step 4: Simplify right side
    547,927.50x = 260,028,273,500.55
  5. Step 5: Solve for x
    x = 260,028,273,500.55/547,927.50
  6. Step 6: Final answer
    x = 474,566.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.